Example usage 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:de.undercouch.bson4jackson.io.StaticBuffers.java

/**
 * @return a thread-local singleton instance of this class
 *///w ww  .  jav a2s  . co  m
public static StaticBuffers getInstance() {
    SoftReference<StaticBuffers> ref = _instance.get();
    StaticBuffers buf = (ref == null ? null : ref.get());
    if (buf == null) {
        buf = new StaticBuffers();
        _instance.set(new SoftReference<StaticBuffers>(buf));
    }
    return buf;
}

From source file:org.jboss.windup.metadata.type.ManifestMetadata.java

public Manifest getManifest() {
    if (manifest == null) {
        // create it.
        try {/*from   w  ww. j  av a2s .c  o  m*/
            if (LOG.isDebugEnabled()) {
                LOG.debug("Reading manifest: " + filePointer.getAbsolutePath());
            }
            Manifest mTmp = new Manifest(new FileInputStream(filePointer));
            manifest = new SoftReference<Manifest>(mTmp);
            LOG.debug("Reading manifest complete.");
        } catch (Exception e) {
            LOG.error("Bad Manifest? " + filePointer.getAbsolutePath());
            LOG.info("Skipping file. Continuing Windup Processing...");

            Summary sr = new Summary();
            sr.setDescription("Bad Manifest? Unable to parse.");
            sr.setLevel(NotificationLevel.CRITICAL);
            sr.setEffort(new UnknownEffort());
            this.getDecorations().add(sr);
            this.manifest = null;
        }
    }
    if (manifest == null) {
        return null;
    }
    return manifest.get();
}

From source file:edu.ksu.cis.santos.mdcf.dml.ast.AstNode.java

/**
 * Retrieves the immediate children of this AST.
 * //  w w w .  ja  va 2s. co  m
 * @return a possibly empty array of this node's children. The returned array
 *         can be mutated but it does not affect the AST.
 */
public final Object[] children() {
    Object[] result = null;
    if ((this._children == null) || ((result = this._children.get()) == null)) {
        result = getChildren();
        this._children = new SoftReference<Object[]>(result);
    }
    return result;
}

From source file:com.achep.acdisplay.notifications.Action.java

@NonNull
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private static Factory getFactory() {
    Factory factory = sFactoryRef.get();
    if (factory == null) {
        if (Device.hasKitKatWatchApi()) {
            factory = new FactoryKitKatWatch();
        } else {/*w w w  .  j a va 2s. co m*/
            factory = Device.hasKitKatApi() ? new FactoryKitKat() : new FactoryJellyBean();
        }
        sFactoryRef = new SoftReference<>(factory);
        return factory;
    }
    return factory;
}

From source file:mobisocial.musubi.ui.util.EmojiSpannableFactory.java

public static EmojiSpannableFactory getInstance(Context context) {
    if (sSpannableFactory != null) {
        EmojiSpannableFactory f = sSpannableFactory.get();
        if (f != null) {
            return f;
        }//  www  .  j  av a  2  s.  c  o  m
    }
    EmojiSpannableFactory f = new EmojiSpannableFactory(context);
    sSpannableFactory = new SoftReference<EmojiSpannableFactory>(f);
    return f;
}

From source file:net.femtoparsec.jnlmin.utils.PropertySetter.java

public static PropertySetter getPropertySetter(Class beanClass) {
    cleanCache();/*from   w  ww. j av  a  2s .  c o m*/

    Reference<PropertySetter> reference = CACHE.get(beanClass);

    PropertySetter result = reference == null ? null : reference.get();
    if (result == null) {
        result = new PropertySetter(beanClass);
        CACHE.put(beanClass, new SoftReference<PropertySetter>(result));
    }
    return result;
}

From source file:com.splunk.shuttl.archiver.archive.ArchiveConfiguration.java

public static ArchiveConfiguration getSharedInstance() {
    ArchiveConfiguration sharedInstance = null;
    if (sharedInstanceRef != null)
        sharedInstance = sharedInstanceRef.get();

    if (sharedInstance == null) {
        sharedInstance = createConfigurationFromMBean();
        sharedInstanceRef = new SoftReference<ArchiveConfiguration>(sharedInstance);
    }/*  w ww  .ja  v  a 2s.  c o  m*/
    return sharedInstance;
}

From source file:net.sf.ehcache.distribution.EventMessageTest.java

/**
 * SoftReference behaviour testing.//from   w w  w.ja  v  a2  s  .  c  o  m
 */
public void testSoftReferences() {
    AbstractCacheTest.forceVMGrowth();
    Map map = new HashMap();
    for (int i = 0; i < 100; i++) {
        map.put(new Integer(i), new SoftReference(new byte[1000000]));
    }

    int counter = 0;
    for (int i = 0; i < 100; i++) {
        SoftReference softReference = (SoftReference) map.get(new Integer(i));
        byte[] payload = (byte[]) softReference.get();
        if (payload != null) {
            LOG.info("Value found for " + i);
            counter++;
        }
    }
    //This one varies by operating system and architecture. 
    assertTrue("You should get more than " + counter + " out of SoftReferences", counter >= 13);

}

From source file:syndeticlogic.memento.Reaper.java

public Reaper(Cache cache) {
    this.toString = cache.toString();
    this.reference = new SoftReference<Cache>(cache);
}

From source file:com.lrs.enviroment.Metadata.java

/**
 * @return the metadata for the current application
 *///w ww.j a  v  a2s.  co m
public static Metadata getCurrent() {
    Metadata m = getFromMap();
    if (m == null) {
        m = new Metadata();
        holder.set(new SoftReference<Metadata>(m));
    }
    return m;
}