--- /dev/null
+package org.apache.lucene.store;
+
+import java.io.IOException;
+import java.util.Map;
+
+/**
+ * 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.
+ */
+
+/**
+ * Used by MockDirectoryWrapper to create an input stream that
+ * keeps track of when it's been closed.
+ */
+
+public class MockIndexInputWrapper extends IndexInput {
+ private MockDirectoryWrapper dir;
+ final String name;
+ private IndexInput delegate;
+ private boolean isClone;
+
+ /** Construct an empty output buffer. */
+ public MockIndexInputWrapper(MockDirectoryWrapper dir, String name, IndexInput delegate) {
+ this.name = name;
+ this.dir = dir;
+ this.delegate = delegate;
+ }
+
+ @Override
+ public void close() throws IOException {
+ try {
+ // turn on the following to look for leaks closing inputs,
+ // after fixing TestTransactions
+ // dir.maybeThrowDeterministicException();
+ } finally {
+ delegate.close();
+ // Pending resolution on LUCENE-686 we may want to
+ // remove the conditional check so we also track that
+ // all clones get closed:
+ if (!isClone) {
+ dir.removeIndexInput(this, name);
+ }
+ }
+ }
+
+ @Override
+ public Object clone() {
+ IndexInput iiclone = (IndexInput) delegate.clone();
+ MockIndexInputWrapper clone = new MockIndexInputWrapper(dir, name, iiclone);
+ clone.isClone = true;
+ // Pending resolution on LUCENE-686 we may want to
+ // uncomment this code so that we also track that all
+ // clones get closed:
+ /*
+ synchronized(dir.openFiles) {
+ if (dir.openFiles.containsKey(name)) {
+ Integer v = (Integer) dir.openFiles.get(name);
+ v = Integer.valueOf(v.intValue()+1);
+ dir.openFiles.put(name, v);
+ } else {
+ throw new RuntimeException("BUG: cloned file was not open?");
+ }
+ }
+ */
+ return clone;
+ }
+
+ @Override
+ public long getFilePointer() {
+ return delegate.getFilePointer();
+ }
+
+ @Override
+ public void seek(long pos) throws IOException {
+ delegate.seek(pos);
+ }
+
+ @Override
+ public long length() {
+ return delegate.length();
+ }
+
+ @Override
+ public byte readByte() throws IOException {
+ return delegate.readByte();
+ }
+
+ @Override
+ public void readBytes(byte[] b, int offset, int len) throws IOException {
+ delegate.readBytes(b, offset, len);
+ }
+
+ @Override
+ public void copyBytes(IndexOutput out, long numBytes) throws IOException {
+ delegate.copyBytes(out, numBytes);
+ }
+
+ @Override
+ public void readBytes(byte[] b, int offset, int len, boolean useBuffer)
+ throws IOException {
+ delegate.readBytes(b, offset, len, useBuffer);
+ }
+
+ @Override
+ public int readInt() throws IOException {
+ return delegate.readInt();
+ }
+
+ @Override
+ public int readVInt() throws IOException {
+ return delegate.readVInt();
+ }
+
+ @Override
+ public long readLong() throws IOException {
+ return delegate.readLong();
+ }
+
+ @Override
+ public long readVLong() throws IOException {
+ return delegate.readVLong();
+ }
+
+ @Override
+ public String readString() throws IOException {
+ return delegate.readString();
+ }
+
+ @Override
+ public Map<String,String> readStringStringMap() throws IOException {
+ return delegate.readStringStringMap();
+ }
+
+ @Override
+ public void setModifiedUTF8StringsMode() {
+ delegate.setModifiedUTF8StringsMode();
+ }
+
+ @Override
+ public void readChars(char[] buffer, int start, int length)
+ throws IOException {
+ delegate.readChars(buffer, start, length);
+ }
+
+ @Override
+ public void skipChars(int length) throws IOException {
+ delegate.skipChars(length);
+ }
+}