org.elasticsearch.hadoop.yarn.util.IOUtils Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.hadoop.yarn.util;
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
public abstract class IOUtils {
public static String readFrom(InputStream stream) {
try {
StringBuilder sb = new StringBuilder();
BufferedReader br = new BufferedReader(new InputStreamReader(stream, Charset.forName("UTF-8")));
String line;
while ((line = br.readLine()) != null) {
sb.append(line);
sb.append("\n");
}
return sb.toString();
} catch (IOException ex) {
throw new IllegalStateException("Cannot read data stream", ex);
} finally {
try {
stream.close();
} catch (IOException ex) {
// ignore
}
}
}
public static void close(Closeable closable) {
if (closable != null) {
try {
closable.close();
} catch (IOException e) {
// silently ignore
}
}
}
}