svn commit: r1788463 - /jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java

[re...@apache.org]

Author: reschke
Date: Fri Mar 24 15:02:09 2017
New Revision: 1788463

URL: http://svn.apache.org/viewvc?rev=1788463&view=rev
Log:
OAK-5985: add CloseableIterator similar to CloseableIterable

Added:
    jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java   (with props)

Added: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java
URL: http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java?rev=1788463&view=auto
==============================================================================
--- jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java (added)
+++ jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java Fri Mar 24 15:02:09 2017
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+
+package org.apache.jackrabbit.oak.plugins.document.util;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.util.Iterator;
+
+public class CloseableIterator<T> implements Iterator<T>, Closeable {
+    private final Iterator<T> iterator;
+    private final Closeable closeable;
+
+    public static <T> CloseableIterator<T> wrap(Iterator<T> iterator, Closeable closeable) {
+        return new CloseableIterator<T>(iterator, closeable);
+    }
+
+    public static <T> CloseableIterator<T> wrap(Iterator<T> iterator) {
+        return new CloseableIterator<T>(iterator, null);
+    }
+
+    public CloseableIterator(Iterator<T> iterable, Closeable closeable) {
+        this.iterator = iterable;
+        this.closeable = closeable;
+    }
+
+    @Override
+    public void close() throws IOException {
+        if (closeable != null) {
+            closeable.close();
+        }
+    }
+
+    @Override
+    public boolean hasNext() {
+        return iterator.hasNext();
+    }
+
+    @Override
+    public void remove() {
+        iterator.remove();
+    }
+
+    @Override
+    public T next() {
+        return iterator.next();
+    }
+}

Propchange: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java
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Propchange: jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/document/util/CloseableIterator.java
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