aoqi@0: /*
aoqi@0:  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.xml.internal.bind.v2.runtime.unmarshaller;
aoqi@0: 
aoqi@0: import java.io.IOException;
aoqi@0: 
aoqi@0: import com.sun.xml.internal.bind.v2.runtime.output.Pcdata;
aoqi@0: import com.sun.xml.internal.bind.v2.runtime.output.UTF8XmlOutput;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Typed {@link CharSequence} for int[].
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * Fed to unmarshaller when the 'text' data is actually
aoqi@0:  * a virtual image of int array.
aoqi@0:  *
aoqi@0:  * <p>
aoqi@0:  * This class holds int[] as a triplet of (data,start,len)
aoqi@0:  * where 'start' and 'len' represents the start position of the
aoqi@0:  * data and the length.
aoqi@0:  *
aoqi@0:  * @author Kohsuke Kawaguchi
aoqi@0:  */
aoqi@0: public final class IntArrayData extends Pcdata {
aoqi@0: 
aoqi@0:     private int[] data;
aoqi@0:     private int start;
aoqi@0:     private int len;
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * String representation of the data. Lazily computed.
aoqi@0:      */
aoqi@0:     private StringBuilder literal;
aoqi@0: 
aoqi@0: 
aoqi@0:     public IntArrayData(int[] data, int start, int len) {
aoqi@0:         set(data, start, len);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public IntArrayData() {
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Sets the int[] data to this object.
aoqi@0:      *
aoqi@0:      * <p>
aoqi@0:      * This method doesn't make a copy for a performance reason.
aoqi@0:      * The caller is still free to modify the array it passed to this method,
aoqi@0:      * but he should do so with a care. The unmarshalling code isn't expecting
aoqi@0:      * the value to be changed while it's being routed.
aoqi@0:      */
aoqi@0:     public void set(int[] data, int start, int len) {
aoqi@0:         this.data = data;
aoqi@0:         this.start = start;
aoqi@0:         this.len = len;
aoqi@0:         this.literal = null;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public int length() {
aoqi@0:         return getLiteral().length();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public char charAt(int index) {
aoqi@0:         return getLiteral().charAt(index);
aoqi@0:     }
aoqi@0: 
aoqi@0:     public CharSequence subSequence(int start, int end) {
aoqi@0:         return getLiteral().subSequence(start,end);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Computes the literal form from the data.
aoqi@0:      */
aoqi@0:     private StringBuilder getLiteral() {
aoqi@0:         if(literal!=null)   return literal;
aoqi@0: 
aoqi@0:         literal = new StringBuilder();
aoqi@0:         int p = start;
aoqi@0:         for( int i=len; i>0; i-- ) {
aoqi@0:             if(literal.length()>0)  literal.append(' ');
aoqi@0:             literal.append(data[p++]);
aoqi@0:         }
aoqi@0: 
aoqi@0:         return literal;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String toString() {
aoqi@0:         return literal.toString();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void writeTo(UTF8XmlOutput output) throws IOException {
aoqi@0:         int p = start;
aoqi@0:         for( int i=len; i>0; i-- ) {
aoqi@0:             if(i!=len)
aoqi@0:                 output.write(' ');
aoqi@0:             output.text(data[p++]);
aoqi@0:         }
aoqi@0:     }
aoqi@0: }