com.dyuproject.protostuff.parser.MessageField Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of protostuff-parser Show documentation
parser for .proto files
The newest version!
//========================================================================
//Copyright 2007-2009 David Yu [email protected]
//------------------------------------------------------------------------
//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.dyuproject.protostuff.parser;


/**
 * Represents a message field defined in a {@code Proto}.
 *
 * @author David Yu
 * @created Dec 19, 2009
 */
public class MessageField extends Field
{
    
    //java.lang.String javaType;
    Message message;
    
    public MessageField()
    {
        super(false);
    }

    public MessageField(Message message)
    {
        this();
        this.message = message;
    }
    
    public Message getMessage()
    {
        return message;
    }

    public java.lang.String getJavaType()
    {
        //if(javaType!=null)
        //    return javaType;
        
        StringBuilder buffer = new StringBuilder();
        Message.computeName(message, owner, buffer);

        return buffer.toString();
        //return (javaType=buffer.toString());
    }
    
    public java.lang.String getRegularType()
    {
        java.lang.String javaType = getJavaType();
        Proto messageProto = message.getProto();
        java.lang.String javaPackage = messageProto.getJavaPackageName();
        java.lang.String protoPackage = messageProto.getPackageName();
        if(javaType.startsWith(javaPackage) && !javaPackage.equals(protoPackage))
            return javaType.replace(javaPackage, protoPackage);
        
        return javaType;
    }
    
    public java.lang.String getDefaultValueAsString()
    {
        return "null";
    }
    
    public boolean isDelimited()
    {
        return true;
    }
    
    public boolean isSamePackage()
    {
        return getOwner().getProto() == getMessage().getProto();
    }
    
    public java.lang.String getRelativePath()
    {
        if(isSamePackage())
            return "";
        
        java.lang.String currentPackage = getOwner().getProto().getPackageName();
        java.lang.String targetPackage = getMessage().getProto().getPackageName();
        java.lang.String path = "../";
        for(int idx=currentPackage.indexOf('.'); idx!=-1; idx=currentPackage.indexOf('.', idx+1))
            path += "../";

        return path + targetPackage.replace('.', '/') + "/";
    }

}