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package com.sun.codemodel;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

/**
 * A part is a part of a javadoc comment, and it is a list of values.
 *
 * 

* A part can contain a free-form text. This text is modeled as a collection of 'values' * in this class. A value can be a {@link JType} (which will be prinited with a @link tag), * anything that can be turned into a {@link String} via the {@link Object#toString()} method, * or a {@link Collection}/array of those objects. * *

* Values can be added through the various append methods one by one or in a bulk. * * @author Kohsuke Kawaguchi */ public class JCommentPart extends ArrayList { private static final long serialVersionUID = 1L; /** * Appends a new value. * * If the value is {@link JType} it will be printed as a @link tag. * Otherwise it will be converted to String via {@link Object#toString()}. */ public JCommentPart append(Object o) { add(o); return this; } public boolean add(Object o) { flattenAppend(o); return true; } private void flattenAppend(Object value) { if(value==null) return; if(value instanceof Object[]) { for( Object o : (Object[])value) flattenAppend(o); } else if(value instanceof Collection) { for( Object o : (Collection)value) flattenAppend(o); } else super.add(value); } /** * Writes this part into the formatter by using the specified indentation. */ protected void format( JFormatter f, String indent ) { if(!f.isPrinting()) { // quickly pass the types to JFormatter, as that's all we care. // we don't need to worry about the exact formatting of text. for( Object o : this ) if(o instanceof JClass) f.g((JClass)o); return; } if(!isEmpty()) f.p(indent); Iterator itr = iterator(); while(itr.hasNext()) { Object o = itr.next(); if(o instanceof String) { int idx; String s = (String)o; while( (idx=s.indexOf('\n'))!=-1 ) { String line = s.substring(0,idx); if(line.length()>0) f.p(escape(line)); s = s.substring(idx+1); f.nl().p(indent); } if(s.length()!=0) f.p(escape(s)); } else if(o instanceof JClass) { // TODO: this doesn't print the parameterized type properly ((JClass)o).printLink(f); } else if(o instanceof JType) { f.g((JType)o); } else throw new IllegalStateException(); } if(!isEmpty()) f.nl(); } /** * Escapes the appearance of the comment terminator. */ private String escape(String s) { while(true) { int idx = s.indexOf("*/"); if(idx <0) return s; s = s.substring(0,idx+1)+""+s.substring(idx+1); } } }