com.getperka.flatpack.util.VerboseReader Maven / Gradle / Ivy
/*
* #%L
* FlatPack serialization code
* %%
* Copyright (C) 2012 Perka Inc.
* %%
* Licensed 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.
* #L%
*/
package com.getperka.flatpack.util;
import java.io.IOException;
import java.io.Reader;
/**
* A simple Reader implementation that spies on the underlying Reader's contents.
*/
class VerboseReader extends Reader {
private final StringBuilder builder = new StringBuilder();
private final LogChunker chunker;
private final Reader source;
VerboseReader(LogChunker chunker, Reader source) {
this.chunker = chunker;
this.source = source;
}
@Override
public void close() throws IOException {
chunker.info("Incoming payload:\n" + builder);
source.close();
}
@Override
public int read(char[] cbuf, int off, int len) throws IOException {
int toReturn = source.read(cbuf, off, len);
if (toReturn != -1) {
builder.append(cbuf, off, toReturn);
}
return toReturn;
}
}