Example usage for java.lang.ref SoftReference SoftReference

List of usage examples for java.lang.ref SoftReference SoftReference

Introduction

In this page you can find the example usage for java.lang.ref SoftReference SoftReference.

Prototype

public SoftReference(T referent) 

Source Link

Document

Creates a new soft reference that refers to the given object.

Usage

From source file:com.slack.slackteam.cache.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///from w  w  w  .j  a  v a  2s.  com
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    //BEGIN_INCLUDE(init_memory_cache)
    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (SLUtils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (SLUtils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }
    //END_INCLUDE(init_memory_cache)

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.helloants.helloants.util.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///www  . j  a  v  a 2s .  com
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    //BEGIN_INCLUDE(init_memory_cache)
    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            Log.v(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Utils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (Utils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }
    //END_INCLUDE(init_memory_cache)

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.common.app.image.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *//*from  w  w w .j a v a  2  s  .  c om*/
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (AppCommonStatic.DEBUG) {
            Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Utils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (Utils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.rp.justcast.photos.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///from  w w w.  ja  va  2 s.  c om
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        /*if (BuildConfig.DEBUG) {
        Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }*/

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (JustCastUtils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (JustCastUtils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.common.library.bitmap.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///w w w.  ja v a2s  .c om
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    //BEGIN_INCLUDE(init_memory_cache)
    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }
    //END_INCLUDE(init_memory_cache)

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:android.bitmap.util.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///from   w  w w  . ja  v  a 2s .  com
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Utils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it 
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (Utils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:sample.hawk.com.mybasicappcomponents.data_structure.cache.DisplayingBitmaps.util.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///w w  w . ja  va  2s  .  c o  m
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    //BEGIN_INCLUDE(init_memory_cache)
    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            SMLog.d("Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Utils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (Utils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }
    //END_INCLUDE(init_memory_cache)

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.travel.ac.utils.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams/*from  w  ww . java  2  s.  c  om*/
 *         The cache parameters to initialize the cache
 */
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        if (BuildConfig.DEBUG) {
            Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Utils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (Utils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is
             * more practical for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}

From source file:com.astamuse.asta4d.web.builtin.StaticResourceHandler.java

protected Object response(HttpServletRequest request, HttpServletResponse response,
        ServletContext servletContext, StaticFileInfo info, String requiredPath)
        throws FileNotFoundException, IOException {

    if (info == null) {
        return createSimpleHeaderResponse(404);
    }/*from w  w w . j  a  v a  2  s .com*/

    if (Configuration.getConfiguration().isCacheEnable()) {
        long clientTime = retrieveClientCachedTime(request);
        if (clientTime >= info.lastModified) {
            return createSimpleHeaderResponse(304);
        }
    }

    // our header provider is not convenient for date header... hope we can
    // improve it in future
    long cacheTime = decideCacheTime(requiredPath, info.actualPath);
    response.setStatus(200);
    response.setHeader("Content-Type", info.contentType);
    response.setDateHeader("Expires", DateTime.now().getMillis() + cacheTime);
    response.setDateHeader("Last-Modified", info.lastModified);
    response.setHeader("Cache-control", "max-age=" + (cacheTime / 1000));

    // here we do not synchronize threads because we do not matter

    if (info.content == null && info.firstTimeInput != null) {
        // no cache, and we have opened it at first time
        InputStream input = info.firstTimeInput;
        info.firstTimeInput = null;
        return new BinaryDataProvider(input);
    } else if (info.content == null && info.firstTimeInput == null) {
        // no cache
        return new BinaryDataProvider(servletContext, this.getClass().getClassLoader(), info.actualPath);
    } else {
        // should cache
        byte[] data = null;
        data = info.content.get();
        if (data == null) {
            InputStream input = BinaryDataUtil.retrieveInputStreamByPath(servletContext,
                    this.getClass().getClassLoader(), info.actualPath);
            // if we went to here, which means we are not overing the cache size limit, so we do not need to check null.
            data = retrieveBytesFromInputStream(input, info.cacheLimit);
            info.content = new SoftReference<byte[]>(data);
        }
        return new BinaryDataProvider(data);
    }
}

From source file:br.org.fiscal65.bitmaps.ImageCache.java

/**
 * Initialize the cache, providing all parameters.
 *
 * @param cacheParams The cache parameters to initialize the cache
 *///from  ww w.  jav  a 2s.co  m
private void init(ImageCacheParams cacheParams) {
    mCacheParams = cacheParams;

    //BEGIN_INCLUDE(init_memory_cache)
    // Set up memory cache
    if (mCacheParams.memoryCacheEnabled) {
        //            if (BuildConfig.DEBUG) {
        //                Log.d(TAG, "Memory cache created (size = " + mCacheParams.memCacheSize + ")");
        //            }

        // If we're running on Honeycomb or newer, create a set of reusable bitmaps that can be
        // populated into the inBitmap field of BitmapFactory.Options. Note that the set is
        // of SoftReferences which will actually not be very effective due to the garbage
        // collector being aggressive clearing Soft/WeakReferences. A better approach
        // would be to use a strongly references bitmaps, however this would require some
        // balancing of memory usage between this set and the bitmap LruCache. It would also
        // require knowledge of the expected size of the bitmaps. From Honeycomb to JellyBean
        // the size would need to be precise, from KitKat onward the size would just need to
        // be the upper bound (due to changes in how inBitmap can re-use bitmaps).
        if (Utils.hasHoneycomb()) {
            mReusableBitmaps = Collections.synchronizedSet(new HashSet<SoftReference<Bitmap>>());
        }

        mMemoryCache = new LruCache<String, BitmapDrawable>(mCacheParams.memCacheSize) {

            /**
             * Notify the removed entry that is no longer being cached
             */
            @Override
            protected void entryRemoved(boolean evicted, String key, BitmapDrawable oldValue,
                    BitmapDrawable newValue) {
                if (RecyclingBitmapDrawable.class.isInstance(oldValue)) {
                    // The removed entry is a recycling drawable, so notify it
                    // that it has been removed from the memory cache
                    ((RecyclingBitmapDrawable) oldValue).setIsCached(false);
                } else {
                    // The removed entry is a standard BitmapDrawable

                    if (Utils.hasHoneycomb()) {
                        // We're running on Honeycomb or later, so add the bitmap
                        // to a SoftReference set for possible use with inBitmap later
                        mReusableBitmaps.add(new SoftReference<Bitmap>(oldValue.getBitmap()));
                    }
                }
            }

            /**
             * Measure item size in kilobytes rather than units which is more practical
             * for a bitmap cache
             */
            @Override
            protected int sizeOf(String key, BitmapDrawable value) {
                final int bitmapSize = getBitmapSize(value) / 1024;
                return bitmapSize == 0 ? 1 : bitmapSize;
            }
        };
    }
    //END_INCLUDE(init_memory_cache)

    // By default the disk cache is not initialized here as it should be initialized
    // on a separate thread due to disk access.
    if (cacheParams.initDiskCacheOnCreate) {
        // Set up disk cache
        initDiskCache();
    }
}