| /* |
| * 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(); |
| } |
| } |