pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.4.0 / lucene / src / java / org / apache / lucene / store / SingleInstanceLockFactory.java

diff --git a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/SingleInstanceLockFactory.java b/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/SingleInstanceLockFactory.java
deleted file mode 100755 (executable)
index 9264a4c..0000000
--- a/lucene-java-3.4.0/lucene/src/java/org/apache/lucene/store/SingleInstanceLockFactory.java
+++ /dev/null
@@ -1,91 +0,0 @@
-package org.apache.lucene.store;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.io.IOException;
-import java.util.HashSet;
-
-/**
- * Implements {@link LockFactory} for a single in-process instance,
- * meaning all locking will take place through this one instance.
- * Only use this {@link LockFactory} when you are certain all
- * IndexReaders and IndexWriters for a given index are running
- * against a single shared in-process Directory instance.  This is
- * currently the default locking for RAMDirectory.
- *
- * @see LockFactory
- */
-
-public class SingleInstanceLockFactory extends LockFactory {
-
-  private HashSet<String> locks = new HashSet<String>();
-
-  @Override
-  public Lock makeLock(String lockName) {
-    // We do not use the LockPrefix at all, because the private
-    // HashSet instance effectively scopes the locking to this
-    // single Directory instance.
-    return new SingleInstanceLock(locks, lockName);
-  }
-
-  @Override
-  public void clearLock(String lockName) throws IOException {
-    synchronized(locks) {
-      if (locks.contains(lockName)) {
-        locks.remove(lockName);
-      }
-    }
-  }
-}
-
-class SingleInstanceLock extends Lock {
-
-  String lockName;
-  private HashSet<String> locks;
-
-  public SingleInstanceLock(HashSet<String> locks, String lockName) {
-    this.locks = locks;
-    this.lockName = lockName;
-  }
-
-  @Override
-  public boolean obtain() throws IOException {
-    synchronized(locks) {
-      return locks.add(lockName);
-    }
-  }
-
-  @Override
-  public void release() {
-    synchronized(locks) {
-      locks.remove(lockName);
-    }
-  }
-
-  @Override
-  public boolean isLocked() {
-    synchronized(locks) {
-      return locks.contains(lockName);
-    }
-  }
-
-  @Override
-  public String toString() {
-    return super.toString() + ": " + lockName;
-  }
-}