com.google.api.client.protobuf.ProtoObjectParser Maven / Gradle / Ivy
/*
* Copyright (c) 2012 Google 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.
*/
package com.google.api.client.protobuf;
import com.google.api.client.util.Beta;
import com.google.api.client.util.ObjectParser;
import com.google.protobuf.MessageLite;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.lang.reflect.Type;
import java.nio.charset.Charset;
/**
* {@link Beta}
* Parses protocol buffer HTTP response content into a protocol buffer message.
*
* Implementation is immutable and therefore thread-safe.
*
*
Data-classes are expected to extend {@link MessageLite}.
*
*
All Charset parameters are ignored for protocol buffers.
*
* @author Matthias Linder (mlinder)
* @since 1.10
*/
@Beta
public class ProtoObjectParser implements ObjectParser {
@SuppressWarnings("unchecked")
public T parseAndClose(InputStream in, Charset charset, Class dataClass)
throws IOException {
return (T) ProtocolBuffers.parseAndClose(in, (Class) dataClass);
}
public Object parseAndClose(InputStream in, Charset charset, Type dataType) throws IOException {
if (dataType instanceof Class) {
return parseAndClose(in, charset, (Class) dataType);
}
throw new UnsupportedOperationException("dataType must be of Class");
}
public T parseAndClose(Reader reader, Class dataClass) throws IOException {
throw new UnsupportedOperationException("protocol buffers must be read from a binary stream");
}
public Object parseAndClose(Reader reader, Type dataType) throws IOException {
throw new UnsupportedOperationException("protocol buffers must be read from a binary stream");
}
}