Example usage for org.apache.commons.collections.map LRUMap get

List of usage examples for org.apache.commons.collections.map LRUMap get

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Introduction

In this page you can find the example usage for org.apache.commons.collections.map LRUMap get.

Prototype

public Object get(Object key)

Source Link

Document

Gets the value mapped to the key specified.

Usage

From source file:de.hybris.platform.test.LRUMapTest.java

@Test
public void testAgain() {
    final LRUMap map = new LRUMap(2);
    map.put("2", "zwei");
    map.put("3", "drei");

    map.get("2");
    map.put("4", "vier");

    assertEquals("zwei", map.get("2"));
    assertEquals(null, map.get("3"));
    assertEquals("vier", map.get("4"));
}

From source file:de.hybris.platform.test.LRUMapTest.java

@Test
public void testBug() {
    final LRUMap map = new LRUMap(2);
    map.put("1", "eins");
    map.put("2", "zwei");
    assertEquals("eins", map.get("1"));
    assertEquals("zwei", map.get("2"));

    map.put("3", "drei");
    assertEquals(null, map.get("1"));
    assertEquals("zwei", map.get("2"));
    assertEquals("drei", map.get("3"));

    map.get("2");
    map.put("4", "vier");

    assertEquals(null, map.get("1"));
    assertEquals("zwei", map.get("2"));
    assertEquals(null, map.get("3"));
    assertEquals("vier", map.get("4"));
}

From source file:edu.mayo.informatics.lexgrid.convert.directConversions.UMLSToSQL.java

private void loadOtherProperties(String UMLSCodingSchemeName, String cui, String codingSchemeName,
        String conceptCode, LRUMap TValues) throws SQLException {
    // Drop the CUI in.
    supportedPropertyTypes_.add("UMLS_CUI");
    addToEntityProperty(codingSchemeName, SQLTableConstants.ENTITYTYPE_CONCEPT, conceptCode,
            "CUI-" + cuiCounter_++, "property", "UMLS_CUI", null, null, null, null, null, null, cui);

    // get the semantic type(s)
    supportedPropertyTypes_.add("Semantic_Type");
    PreparedStatement getSemTypes = umlsConnection_.prepareStatement("SELECT STY FROM MRSTY WHERE CUI = ?");
    getSemTypes.setString(1, cui);//from   www.  j av  a 2s  .c o m

    ResultSet semTypes = getSemTypes.executeQuery();
    while (semTypes.next()) {
        addToEntityProperty(codingSchemeName, SQLTableConstants.ENTITYTYPE_CONCEPT, conceptCode,
                "SemType-" + semTypeCounter_++, "property", "Semantic_Type", null,
                SQLTableConstants.TBLCOLVAL_FORMAT_TXT_PLAIN, null, null, null, null,
                semTypes.getString("STY"));
    }

    getSemTypes.close();

    // load the other properties
    PreparedStatement getProperties = umlsConnection_
            .prepareStatement("SELECT ATN, ATV, STYPE, METAUI FROM MRSAT WHERE CODE = ? AND SAB = ?");

    getProperties.setString(1, conceptCode);
    getProperties.setString(2, UMLSCodingSchemeName);

    ResultSet properties = getProperties.executeQuery();

    ArrayList auiProps = new ArrayList();

    while (properties.next()) {
        String propertyFlag = properties.getString("ATN");
        String propertyValue = properties.getString("ATV");
        String propertyStype = properties.getString("STYPE");
        String propertyMetaui = properties.getString("METAUI");

        String propertyId = null;
        String propertyName = null;
        String propertyType = null;
        String representationalForm = null;
        Boolean isPreferred = null;

        if (mrsatMap_.get(propertyFlag) != null && (propertyStype.equalsIgnoreCase("CODE")
                || propertyStype.equalsIgnoreCase("SCUI") || propertyStype.equalsIgnoreCase("SDUI"))) {
            Integer type = (Integer) mrsatMap_.get(propertyFlag);
            if (type.intValue() == SKIP.intValue()) {
                continue;
            } else if (type.intValue() == COMMENT.intValue()) {
                propertyId = "C-" + commentCounter_++;
                propertyType = SQLTableConstants.TBLCOLVAL_COMMENT;
                propertyName = SQLTableConstants.TBLCOLVAL_COMMENT;
                isPreferred = new Boolean(false);
            } else if (type.intValue() == INSTRUCTION.intValue()) {
                propertyId = "I-" + instructionCounter_++;
                propertyType = SQLTableConstants.TBLCOLVAL_INSTRUCTION;
                propertyName = SQLTableConstants.TBLCOLVAL_INSTRUCTION;
                isPreferred = new Boolean(false);
            } else if (type.intValue() == PRESENTATION.intValue()) {
                propertyId = "T-" + presentationCounter_++;
                propertyType = SQLTableConstants.TBLCOLVAL_PRESENTATION;
                propertyName = SQLTableConstants.TBLCOLVAL_TEXTUALPRESENTATION;
                TValues.put(propertyMetaui, propertyId);
                isPreferred = new Boolean(false);
            }
        } else if (propertyStype.equalsIgnoreCase("SAUI")) {
            auiProps.add(new AUI_PROP(propertyFlag, propertyValue, propertyStype, propertyMetaui));
            continue;
        } else {
            propertyId = "P-" + propertyCounter_++;
            propertyType = SQLTableConstants.TBLCOLVAL_PROPERTY;
            propertyName = propertyFlag;
        }

        representationalForm = (String) atnRepresentationalMap_.get(propertyFlag);
        supportedPropertyTypes_.add(propertyName);
        addToEntityProperty(codingSchemeName, SQLTableConstants.ENTITYTYPE_CONCEPT, conceptCode, propertyId,
                propertyType, propertyName, null, SQLTableConstants.TBLCOLVAL_FORMAT_TXT_PLAIN, isPreferred,
                null, null, representationalForm, propertyValue);
    }

    Iterator aPIter = auiProps.iterator();
    while (aPIter.hasNext()) {
        AUI_PROP ap = (AUI_PROP) aPIter.next();
        String apPropertyId = (String) TValues.get(ap.metaui);
        if (apPropertyId == null)
            continue;
        if (!supportedPropertyQualifiers_.contains(ap.atn))
            supportedPropertyQualifiers_.add(ap.atn);
        addConceptToEntityPropertyMultiAttributes(codingSchemeName, SQLTableConstants.ENTITYTYPE_CONCEPT,
                conceptCode, apPropertyId, SQLTableConstants.TBLCOLVAL_QUALIFIER, ap.atn, ap.atv, "");
    }

    getProperties.close();
}

From source file:org.apache.accumulo.core.client.mapred.AccumuloFileOutputFormat.java

@Override
public RecordWriter<Key, Value> getRecordWriter(FileSystem ignored, JobConf job, String name,
        Progressable progress) throws IOException {
    // get the path of the temporary output file
    final Configuration conf = job;
    final AccumuloConfiguration acuConf = FileOutputConfigurator.getAccumuloConfiguration(CLASS, job);

    final String extension = acuConf.get(Property.TABLE_FILE_TYPE);
    final Path file = new Path(getWorkOutputPath(job), getUniqueName(job, "part") + "." + extension);

    final LRUMap validVisibilities = new LRUMap(ConfiguratorBase.getVisibilityCacheSize(conf));

    return new RecordWriter<Key, Value>() {
        FileSKVWriter out = null;// w w  w .j  a  v  a2s  .  com

        @Override
        public void close(Reporter reporter) throws IOException {
            if (out != null)
                out.close();
        }

        @Override
        public void write(Key key, Value value) throws IOException {

            Boolean wasChecked = (Boolean) validVisibilities.get(key.getColumnVisibilityData());
            if (wasChecked == null) {
                byte[] cv = key.getColumnVisibilityData().toArray();
                new ColumnVisibility(cv);
                validVisibilities.put(new ArrayByteSequence(Arrays.copyOf(cv, cv.length)), Boolean.TRUE);
            }

            if (out == null) {
                out = FileOperations.getInstance().newWriterBuilder()
                        .forFile(file.toString(), file.getFileSystem(conf), conf)
                        .withTableConfiguration(acuConf).build();
                out.startDefaultLocalityGroup();
            }
            out.append(key, value);
        }
    };
}

From source file:org.apache.accumulo.core.client.mapreduce.AccumuloFileOutputFormat.java

@Override
public RecordWriter<Key, Value> getRecordWriter(TaskAttemptContext context) throws IOException {
    // get the path of the temporary output file
    final Configuration conf = context.getConfiguration();
    final AccumuloConfiguration acuConf = FileOutputConfigurator.getAccumuloConfiguration(CLASS,
            context.getConfiguration());

    final String extension = acuConf.get(Property.TABLE_FILE_TYPE);
    final Path file = this.getDefaultWorkFile(context, "." + extension);

    final LRUMap validVisibilities = new LRUMap(1000);

    return new RecordWriter<Key, Value>() {
        FileSKVWriter out = null;//w  ww  . ja  v a 2 s . co m

        @Override
        public void close(TaskAttemptContext context) throws IOException {
            if (out != null)
                out.close();
        }

        @Override
        public void write(Key key, Value value) throws IOException {

            Boolean wasChecked = (Boolean) validVisibilities.get(key.getColumnVisibilityData());
            if (wasChecked == null) {
                byte[] cv = key.getColumnVisibilityData().toArray();
                new ColumnVisibility(cv);
                validVisibilities.put(new ArrayByteSequence(Arrays.copyOf(cv, cv.length)), Boolean.TRUE);
            }

            if (out == null) {
                out = FileOperations.getInstance().newWriterBuilder()
                        .forFile(file.toString(), file.getFileSystem(conf), conf)
                        .withTableConfiguration(acuConf).build();
                out.startDefaultLocalityGroup();
            }
            out.append(key, value);
        }
    };
}

From source file:org.apache.jackrabbit.core.query.lucene.DocNumberCache.java

/**
 * Puts a document number into the cache using a uuid as key. An entry is
 * only overwritten if the according reader is younger than the reader
 * associated with the existing entry./*w  w w .j  a v  a 2s .c  o m*/
 *
 * @param uuid the key.
 * @param reader the index reader from where the document number was read.
 * @param n the document number.
 */
void put(String uuid, CachingIndexReader reader, int n) {
    LRUMap cacheSegment = docNumbers[getSegmentIndex(uuid.charAt(0))];
    synchronized (cacheSegment) {
        Entry e = (Entry) cacheSegment.get(uuid);
        if (e != null) {
            // existing entry
            // ignore if reader is older than the one in entry
            if (reader.getCreationTick() <= e.creationTick) {
                if (log.isDebugEnabled()) {
                    log.debug("Ignoring put(). New entry is not from a newer reader. " + "existing: "
                            + e.creationTick + ", new: " + reader.getCreationTick());
                }
                e = null;
            }
        } else {
            // entry did not exist
            e = new Entry(reader.getCreationTick(), n);
        }

        if (e != null) {
            cacheSegment.put(uuid, e);
        }
    }
}

From source file:org.apache.jackrabbit.core.query.lucene.DocNumberCache.java

/**
 * Returns the cache entry for <code>uuid</code>, or <code>null</code> if
 * no entry exists for <code>uuid</code>.
 *
 * @param uuid the key.//www .  j a va  2 s.  c  o m
 * @return cache entry or <code>null</code>.
 */
Entry get(String uuid) {
    LRUMap cacheSegment = docNumbers[getSegmentIndex(uuid.charAt(0))];
    Entry entry;
    synchronized (cacheSegment) {
        entry = (Entry) cacheSegment.get(uuid);
    }
    if (log.isInfoEnabled()) {
        accesses++;
        if (entry == null) {
            misses++;
        }
        // log at most after 1000 accesses and every 10 seconds
        if (accesses > 1000 && System.currentTimeMillis() - lastLog > LOG_INTERVAL) {
            long ratio = 100;
            if (misses != 0) {
                ratio -= misses * 100L / accesses;
            }
            StringBuffer statistics = new StringBuffer();
            int inUse = 0;
            for (LRUMap docNumber : docNumbers) {
                inUse += docNumber.size();
            }
            statistics.append("size=").append(inUse);
            statistics.append("/").append(docNumbers[0].maxSize() * CACHE_SEGMENTS);
            statistics.append(", #accesses=").append(accesses);
            statistics.append(", #hits=").append((accesses - misses));
            statistics.append(", #misses=").append(misses);
            statistics.append(", cacheRatio=").append(ratio).append("%");
            log.info(statistics.toString());
            accesses = 0;
            misses = 0;
            lastLog = System.currentTimeMillis();
        }
    }
    return entry;
}

From source file:org.apache.jena.security.impl.SecuredItemImpl.java

/**
 * get the cached value./* www  . j  a va2 s.c o  m*/
 * @param key The key to look for.
 * @return the value of the security check or <code>null</code> if the value has not been cached.
 */
private Boolean cacheGet(final CacheKey key) {
    final LRUMap cache = SecuredItemImpl.CACHE.get();
    return (cache == null) ? null : (Boolean) cache.get(key);
}

From source file:org.exoplatform.services.jcr.impl.core.query.lucene.DocNumberCache.java

/**
 * Puts a document number into the cache using a uuid as key. An entry is
 * only overwritten if the according reader is younger than the reader
 * associated with the existing entry.//from  w ww .  ja v a  2 s .  c o  m
 *
 * @param uuid the key.
 * @param reader the index reader from where the document number was read.
 * @param n the document number.
 */
void put(String uuid, CachingIndexReader reader, int n) {
    LRUMap cacheSegment = docNumbers[getSegmentIndex(uuid.charAt(0))];
    //UUID key = UUID.fromString(uuid);
    String key = uuid;
    synchronized (cacheSegment) {
        Entry e = (Entry) cacheSegment.get(key);
        if (e != null) {
            // existing entry
            // ignore if reader is older than the one in entry
            if (reader.getCreationTick() <= e.creationTick) {
                if (log.isDebugEnabled()) {
                    log.debug("Ignoring put(). New entry is not from a newer reader. " + "existing: "
                            + e.creationTick + ", new: " + reader.getCreationTick());
                }
                e = null;
            }
        } else {
            // entry did not exist
            e = new Entry(reader.getCreationTick(), n);
        }

        if (e != null) {
            cacheSegment.put(key, e);
        }
    }
}

From source file:org.exoplatform.services.jcr.impl.core.query.lucene.DocNumberCache.java

/**
 * Returns the cache entry for <code>uuid</code>, or <code>null</code> if
 * no entry exists for <code>uuid</code>.
 *
 * @param uuid the key.//from   w ww. ja v a2  s .  c  o m
 * @return cache entry or <code>null</code>.
 */
Entry get(String uuid) {
    LRUMap cacheSegment = docNumbers[getSegmentIndex(uuid.charAt(0))];
    // uuid may be invalid
    //        if (uuid.length() != UUID.UUID_FORMATTED_LENGTH) {
    //            return null;
    //        }
    String key = uuid;
    Entry entry;
    synchronized (cacheSegment) {
        entry = (Entry) cacheSegment.get(key);
    }
    if (log.isDebugEnabled()) {
        accesses++;
        if (entry == null) {
            misses++;
        }
        // log at most after 1000 accesses and every 10 seconds
        if (accesses > 1000 && System.currentTimeMillis() - lastLog > LOG_INTERVAL) {
            long ratio = 100;
            if (misses != 0) {
                ratio -= misses * 100L / accesses;
            }
            StringBuilder statistics = new StringBuilder();
            int inUse = 0;
            for (int i = 0; i < docNumbers.length; i++) {
                inUse += docNumbers[i].size();
            }
            statistics.append("size=").append(inUse);
            statistics.append("/").append(docNumbers[0].maxSize() * CACHE_SEGMENTS);
            statistics.append(", #accesses=").append(accesses);
            statistics.append(", #hits=").append((accesses - misses));
            statistics.append(", #misses=").append(misses);
            statistics.append(", cacheRatio=").append(ratio).append("%");
            log.debug(statistics.toString());
            accesses = 0;
            misses = 0;
            lastLog = System.currentTimeMillis();
        }
    }
    return entry;
}