Example usage for org.apache.lucene.store RAMDirectory RAMDirectory

Introduction

In this page you can find the example usage for org.apache.lucene.store RAMDirectory RAMDirectory.

Prototype

public RAMDirectory()

Source Link

Document

Constructs an empty Directory .

Usage

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

License:Apache License

protected TermEnum createTermEnum(String prefix, int numTerms) throws IOException {
    Directory dir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(dir,
            new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36)));
    try {// www .j  av a 2s  .  c o  m
        for (int i = 0; i < numTerms; i++) {
            Document doc = new Document();
            doc.add(new Field("field", true, prefix + i, Field.Store.NO, Field.Index.NOT_ANALYZED_NO_NORMS,
                    Field.TermVector.NO));
            writer.addDocument(doc);
        }
    } finally {
        writer.close();
    }
    IndexReader reader = IndexReader.open(dir);
    try {
        TermEnum terms = reader.terms();
        if (terms.term() == null) {
            // position at first term
            terms.next();
        }
        return terms;
    } finally {
        reader.close();
    }
}

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

License:Apache License

private void checkStream(int size, int buffer) throws IOException {
    Random rand = new Random();
    byte[] data = new byte[size];
    rand.nextBytes(data);// w  ww  .  ja v a 2s  .c  o m
    Directory dir = new RAMDirectory();
    IndexOutput out = dir.createOutput("test");
    out.writeBytes(data, data.length);
    out.close();
    InputStream in = new IndexInputStream(dir.openInput("test"));
    if (buffer != 0) {
        in = new BufferedInputStream(in, buffer);
    }
    byte[] buf = new byte[3];
    int len;
    int pos = 0;
    while ((len = in.read(buf)) > -1) {
        for (int i = 0; i < len; i++, pos++) {
            assertEquals(data[pos], buf[i]);
        }
    }
    in.close();
    // assert length
    assertEquals(data.length, pos);
}

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

License:Apache License

private void checkStream(int size, int buffer) throws IOException {
    Random rand = new Random();
    byte[] data = new byte[size];
    rand.nextBytes(data);//from  w  ww  .j  ava 2  s  . c  om
    Directory dir = new RAMDirectory();
    OutputStream out = new IndexOutputStream(dir.createOutput("test"));
    if (buffer != 0) {
        out = new BufferedOutputStream(out, buffer);
    }
    out.write(data);
    out.close();

    byte[] buf = new byte[3];
    int pos = 0;
    IndexInput in = dir.openInput("test");
    for (;;) {
        int len = (int) Math.min(buf.length, in.length() - pos);
        in.readBytes(buf, 0, len);
        for (int i = 0; i < len; i++, pos++) {
            assertEquals(data[pos], buf[i]);
        }
        if (len == 0) {
            // EOF
            break;
        }
    }
    in.close();

    // assert length
    assertEquals(data.length, pos);
}

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

License:Apache License

/**
 * {@inheritDoc}//w  ww.  j a  v  a2s  .  c o m
 */
public Directory getDirectory(String name) {
    synchronized (directories) {
        Directory dir = directories.get(name);
        if (dir == null) {
            dir = new RAMDirectory();
            directories.put(name, dir);
        }
        return dir;
    }
}

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

License:Apache License

public void testMigration() throws Exception {
    List<Document> docs = new ArrayList<Document>();
    docs.add(createDocument("ab", "a"));
    docs.add(createDocument("a", "b"));
    docs.add(createDocument("abcd", "c"));
    docs.add(createDocument("abc", "d"));

    DirectoryManager dirMgr = new RAMDirectoryManager();

    PersistentIndex idx = new PersistentIndex("index", new StandardAnalyzer(Version.LUCENE_36),
            Similarity.getDefault(), new DocNumberCache(100),
            new IndexingQueue(new IndexingQueueStore(new RAMDirectory())), dirMgr, 0);
    idx.addDocuments(docs.toArray(new Document[docs.size()]));
    idx.commit();/*w  ww .j  a  v a  2 s.c  o m*/

    IndexMigration.migrate(idx, dirMgr, SEP_CHAR);
}

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

License:Apache License

/**
 * Creates a new <code>VolatileIndex</code> using an <code>analyzer</code>.
 *
 * @param analyzer the analyzer to use./* w w w . j  ava  2s.  c o  m*/
 * @param similarity the similarity implementation.
 * @param indexingQueue the indexing queue.
 * @throws IOException if an error occurs while opening the index.
 */
VolatileIndex(Analyzer analyzer, Similarity similarity, IndexingQueue indexingQueue) throws IOException {
    super(analyzer, similarity, new RAMDirectory(), null, indexingQueue);
}

From source file:org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopierTest.java

License:Apache License

@Test
public void basicTest() throws Exception {
    Directory baseDir = new RAMDirectory();
    IndexDefinition defn = new IndexDefinition(root, builder.getNodeState());
    IndexCopier c1 = new RAMIndexCopier(baseDir, sameThreadExecutor(), getWorkDir());

    Directory remote = new RAMDirectory();
    Directory wrapped = c1.wrapForRead("/foo", defn, remote);

    byte[] t1 = writeFile(remote, "t1");
    byte[] t2 = writeFile(remote, "t2");

    assertEquals(2, wrapped.listAll().length);

    assertTrue(wrapped.fileExists("t1"));
    assertTrue(wrapped.fileExists("t2"));

    assertEquals(t1.length, wrapped.fileLength("t1"));
    assertEquals(t2.length, wrapped.fileLength("t2"));

    readAndAssert(wrapped, "t1", t1);

    //t1 should now be added to testDir
    assertTrue(baseDir.fileExists("t1"));
}

From source file:org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopierTest.java

License:Apache License

@Test
public void basicTestWithPrefetch() throws Exception {
    final List<String> syncedFiles = Lists.newArrayList();
    Directory baseDir = new RAMDirectory() {
        @Override//ww  w  .  j  a  va  2s .c  o  m
        public void sync(Collection<String> names) throws IOException {
            syncedFiles.addAll(names);
            super.sync(names);
        }
    };
    IndexDefinition defn = new IndexDefinition(root, builder.getNodeState());
    IndexCopier c1 = new RAMIndexCopier(baseDir, sameThreadExecutor(), getWorkDir(), true);

    Directory remote = new RAMDirectory();

    byte[] t1 = writeFile(remote, "t1");
    byte[] t2 = writeFile(remote, "t2");

    Directory wrapped = c1.wrapForRead("/foo", defn, remote);
    assertEquals(2, wrapped.listAll().length);
    assertThat(syncedFiles, containsInAnyOrder("t1", "t2"));

    assertTrue(wrapped.fileExists("t1"));
    assertTrue(wrapped.fileExists("t2"));

    assertTrue(baseDir.fileExists("t1"));
    assertTrue(baseDir.fileExists("t2"));

    assertEquals(t1.length, wrapped.fileLength("t1"));
    assertEquals(t2.length, wrapped.fileLength("t2"));

    readAndAssert(wrapped, "t1", t1);

}

From source file:org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopierTest.java

License:Apache License

@Test
public void nonExistentFile() throws Exception {
    Directory baseDir = new RAMDirectory();
    IndexDefinition defn = new IndexDefinition(root, builder.getNodeState());
    CollectingExecutor executor = new CollectingExecutor();
    IndexCopier c1 = new RAMIndexCopier(baseDir, executor, getWorkDir(), true);

    Directory remote = new RAMDirectory();
    Directory wrapped = c1.wrapForRead("/foo", defn, remote);

    try {//from   ww w .j ava2s.com
        wrapped.openInput("foo.txt", IOContext.DEFAULT);
        fail();
    } catch (FileNotFoundException ignore) {

    }

    assertEquals(0, executor.commands.size());
}

From source file:org.apache.jackrabbit.oak.plugins.index.lucene.IndexCopierTest.java

License:Apache License

@Test
public void basicTestWithFS() throws Exception {
    IndexDefinition defn = new IndexDefinition(root, builder.getNodeState());
    IndexCopier c1 = new IndexCopier(sameThreadExecutor(), getWorkDir());

    Directory remote = new RAMDirectory();
    Directory wrapped = c1.wrapForRead("/foo", defn, remote);

    byte[] t1 = writeFile(remote, "t1");
    byte[] t2 = writeFile(remote, "t2");

    assertEquals(2, wrapped.listAll().length);

    assertTrue(wrapped.fileExists("t1"));
    assertTrue(wrapped.fileExists("t2"));

    assertEquals(t1.length, wrapped.fileLength("t1"));
    assertEquals(t2.length, wrapped.fileLength("t2"));

    readAndAssert(wrapped, "t1", t1);

    //t1 should now be added to testDir
    File indexDir = c1.getIndexDir(defn, "/foo");
    assertTrue(new File(indexDir, "t1").exists());

    TabularData td = c1.getIndexPathMapping();
    assertEquals(1, td.size());/* w w  w  . jav  a2s.co m*/
}