/*
* 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.catalina.webresources;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.apache.catalina.TrackedWebResource;
import org.apache.catalina.WebResourceRoot;
class TrackedInputStream extends InputStream implements TrackedWebResource {
private final WebResourceRoot root;
private final String name;
private final InputStream is;
private final Exception creation;
TrackedInputStream(WebResourceRoot root, String name, InputStream is) {
this.root = root;
this.name = name;
this.is = is;
this.creation = new Exception();
root.registerTrackedResource(this);
}
@Override
public int read() throws IOException {
return is.read();
}
@Override
public int read(byte[] b) throws IOException {
return is.read(b);
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
return is.read(b, off, len);
}
@Override
public long skip(long n) throws IOException {
return is.skip(n);
}
@Override
public int available() throws IOException {
return is.available();
}
@Override
public void close() throws IOException {
root.deregisterTrackedResource(this);
is.close();
}
@Override
public synchronized void mark(int readlimit) {
is.mark(readlimit);
}
@Override
public synchronized void reset() throws IOException {
is.reset();
}
@Override
public boolean markSupported() {
return is.markSupported();
}
@Override
public String getName() {
return name;
}
@Override
public Exception getCreatedBy() {
return creation;
}
@Override
public String toString() {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
sw.append('[');
sw.append(name);
sw.append(']');
sw.append(System.lineSeparator());
creation.printStackTrace(pw);
pw.flush();
return sw.toString();
}
}