| // 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 |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| package com.google.protobuf; |
| |
| import com.google.protobuf.AbstractMessageLite.Builder.LimitedInputStream; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| /** |
| * 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 liujisi@google.com (Pherl Liu) |
| */ |
| public abstract class AbstractParser<MessageType extends MessageLite> |
| implements Parser<MessageType> { |
| /** |
| * 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(); |
| |
| public MessageType parsePartialFrom(CodedInputStream input) |
| throws InvalidProtocolBufferException { |
| return parsePartialFrom(input, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parseFrom(CodedInputStream input, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom(input, extensionRegistry)); |
| } |
| |
| public MessageType parseFrom(CodedInputStream input) |
| throws InvalidProtocolBufferException { |
| return parseFrom(input, EMPTY_REGISTRY); |
| } |
| |
| 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; |
| } |
| } |
| |
| public MessageType parsePartialFrom(ByteString data) |
| throws InvalidProtocolBufferException { |
| return parsePartialFrom(data, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parseFrom(ByteString data, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized(parsePartialFrom(data, extensionRegistry)); |
| } |
| |
| public MessageType parseFrom(ByteString data) |
| throws InvalidProtocolBufferException { |
| return parseFrom(data, EMPTY_REGISTRY); |
| } |
| |
| 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; |
| } |
| } |
| |
| public MessageType parsePartialFrom(byte[] data, int off, int len) |
| throws InvalidProtocolBufferException { |
| return parsePartialFrom(data, off, len, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parsePartialFrom(byte[] data, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return parsePartialFrom(data, 0, data.length, extensionRegistry); |
| } |
| |
| public MessageType parsePartialFrom(byte[] data) |
| throws InvalidProtocolBufferException { |
| return parsePartialFrom(data, 0, data.length, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parseFrom(byte[] data, int off, int len, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom(data, off, len, extensionRegistry)); |
| } |
| |
| public MessageType parseFrom(byte[] data, int off, int len) |
| throws InvalidProtocolBufferException { |
| return parseFrom(data, off, len, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parseFrom(byte[] data, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return parseFrom(data, 0, data.length, extensionRegistry); |
| } |
| |
| public MessageType parseFrom(byte[] data) |
| throws InvalidProtocolBufferException { |
| return parseFrom(data, EMPTY_REGISTRY); |
| } |
| |
| 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; |
| } |
| |
| public MessageType parsePartialFrom(InputStream input) |
| throws InvalidProtocolBufferException { |
| return parsePartialFrom(input, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parseFrom(InputStream input, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialFrom(input, extensionRegistry)); |
| } |
| |
| public MessageType parseFrom(InputStream input) |
| throws InvalidProtocolBufferException { |
| return parseFrom(input, EMPTY_REGISTRY); |
| } |
| |
| 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.getMessage()); |
| } |
| InputStream limitedInput = new LimitedInputStream(input, size); |
| return parsePartialFrom(limitedInput, extensionRegistry); |
| } |
| |
| public MessageType parsePartialDelimitedFrom(InputStream input) |
| throws InvalidProtocolBufferException { |
| return parsePartialDelimitedFrom(input, EMPTY_REGISTRY); |
| } |
| |
| public MessageType parseDelimitedFrom( |
| InputStream input, |
| ExtensionRegistryLite extensionRegistry) |
| throws InvalidProtocolBufferException { |
| return checkMessageInitialized( |
| parsePartialDelimitedFrom(input, extensionRegistry)); |
| } |
| |
| public MessageType parseDelimitedFrom(InputStream input) |
| throws InvalidProtocolBufferException { |
| return parseDelimitedFrom(input, EMPTY_REGISTRY); |
| } |
| } |