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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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package com.google.protobuf;

import com.google.protobuf.AbstractMessageLite.Builder.LimitedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;

/**
 * A partial implementation of the {@link Parser} interface which implements as many methods of that
 * interface as possible in terms of other methods.
 *
 * 

Note: This class implements all the convenience methods in the {@link Parser} interface. See * {@link Parser} for related javadocs. Subclasses need to implement {@link * Parser#parsePartialFrom(CodedInputStream, ExtensionRegistryLite)} * * @author [email protected] (Pherl Liu) */ public abstract class AbstractParser implements Parser { /** Creates an UninitializedMessageException for MessageType. */ private UninitializedMessageException newUninitializedMessageException(MessageType message) { if (message instanceof AbstractMessageLite) { return ((AbstractMessageLite) message).newUninitializedMessageException(); } return new UninitializedMessageException(message); } /** * Helper method to check if message is initialized. * * @throws InvalidProtocolBufferException if it is not initialized. * @return The message to check. */ private MessageType checkMessageInitialized(MessageType message) throws InvalidProtocolBufferException { if (message != null && !message.isInitialized()) { throw newUninitializedMessageException(message) .asInvalidProtocolBufferException() .setUnfinishedMessage(message); } return message; } private static final ExtensionRegistryLite EMPTY_REGISTRY = ExtensionRegistryLite.getEmptyRegistry(); @Override public MessageType parsePartialFrom(CodedInputStream input) throws InvalidProtocolBufferException { return parsePartialFrom(input, EMPTY_REGISTRY); } @Override public MessageType parseFrom(CodedInputStream input, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return checkMessageInitialized(parsePartialFrom(input, extensionRegistry)); } @Override public MessageType parseFrom(CodedInputStream input) throws InvalidProtocolBufferException { return parseFrom(input, EMPTY_REGISTRY); } @Override public MessageType parsePartialFrom(ByteString data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { MessageType message; try { CodedInputStream input = data.newCodedInput(); message = parsePartialFrom(input, extensionRegistry); try { input.checkLastTagWas(0); } catch (InvalidProtocolBufferException e) { throw e.setUnfinishedMessage(message); } return message; } catch (InvalidProtocolBufferException e) { throw e; } } @Override public MessageType parsePartialFrom(ByteString data) throws InvalidProtocolBufferException { return parsePartialFrom(data, EMPTY_REGISTRY); } @Override public MessageType parseFrom(ByteString data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return checkMessageInitialized(parsePartialFrom(data, extensionRegistry)); } @Override public MessageType parseFrom(ByteString data) throws InvalidProtocolBufferException { return parseFrom(data, EMPTY_REGISTRY); } @Override public MessageType parseFrom(ByteBuffer data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { MessageType message; try { CodedInputStream input = CodedInputStream.newInstance(data); message = parsePartialFrom(input, extensionRegistry); try { input.checkLastTagWas(0); } catch (InvalidProtocolBufferException e) { throw e.setUnfinishedMessage(message); } } catch (InvalidProtocolBufferException e) { throw e; } return checkMessageInitialized(message); } @Override public MessageType parseFrom(ByteBuffer data) throws InvalidProtocolBufferException { return parseFrom(data, EMPTY_REGISTRY); } @Override public MessageType parsePartialFrom( byte[] data, int off, int len, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { try { CodedInputStream input = CodedInputStream.newInstance(data, off, len); MessageType message = parsePartialFrom(input, extensionRegistry); try { input.checkLastTagWas(0); } catch (InvalidProtocolBufferException e) { throw e.setUnfinishedMessage(message); } return message; } catch (InvalidProtocolBufferException e) { throw e; } } @Override public MessageType parsePartialFrom(byte[] data, int off, int len) throws InvalidProtocolBufferException { return parsePartialFrom(data, off, len, EMPTY_REGISTRY); } @Override public MessageType parsePartialFrom(byte[] data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return parsePartialFrom(data, 0, data.length, extensionRegistry); } @Override public MessageType parsePartialFrom(byte[] data) throws InvalidProtocolBufferException { return parsePartialFrom(data, 0, data.length, EMPTY_REGISTRY); } @Override public MessageType parseFrom( byte[] data, int off, int len, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return checkMessageInitialized(parsePartialFrom(data, off, len, extensionRegistry)); } @Override public MessageType parseFrom(byte[] data, int off, int len) throws InvalidProtocolBufferException { return parseFrom(data, off, len, EMPTY_REGISTRY); } @Override public MessageType parseFrom(byte[] data, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return parseFrom(data, 0, data.length, extensionRegistry); } @Override public MessageType parseFrom(byte[] data) throws InvalidProtocolBufferException { return parseFrom(data, EMPTY_REGISTRY); } @Override public MessageType parsePartialFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { CodedInputStream codedInput = CodedInputStream.newInstance(input); MessageType message = parsePartialFrom(codedInput, extensionRegistry); try { codedInput.checkLastTagWas(0); } catch (InvalidProtocolBufferException e) { throw e.setUnfinishedMessage(message); } return message; } @Override public MessageType parsePartialFrom(InputStream input) throws InvalidProtocolBufferException { return parsePartialFrom(input, EMPTY_REGISTRY); } @Override public MessageType parseFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return checkMessageInitialized(parsePartialFrom(input, extensionRegistry)); } @Override public MessageType parseFrom(InputStream input) throws InvalidProtocolBufferException { return parseFrom(input, EMPTY_REGISTRY); } @Override public MessageType parsePartialDelimitedFrom( InputStream input, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { int size; try { int firstByte = input.read(); if (firstByte == -1) { return null; } size = CodedInputStream.readRawVarint32(firstByte, input); } catch (IOException e) { throw new InvalidProtocolBufferException(e); } InputStream limitedInput = new LimitedInputStream(input, size); return parsePartialFrom(limitedInput, extensionRegistry); } @Override public MessageType parsePartialDelimitedFrom(InputStream input) throws InvalidProtocolBufferException { return parsePartialDelimitedFrom(input, EMPTY_REGISTRY); } @Override public MessageType parseDelimitedFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws InvalidProtocolBufferException { return checkMessageInitialized(parsePartialDelimitedFrom(input, extensionRegistry)); } @Override public MessageType parseDelimitedFrom(InputStream input) throws InvalidProtocolBufferException { return parseDelimitedFrom(input, EMPTY_REGISTRY); } }





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