/*
 * Copyright (c) 2003, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package sun.print;

import java.util.Objects;
import java.io.ByteArrayInputStream;

public class AttributeClass {
    private String myName;
    private int myType;
    private int nameLen;
    private Object myValue;

    public static final int TAG_UNSUPPORTED_VALUE = 0x10;
    public static final int TAG_INT = 0x21;
    public static final int TAG_BOOL = 0x22;
    public static final int TAG_ENUM = 0x23;
    public static final int TAG_OCTET = 0x30;
    public static final int TAG_DATE = 0x31;
    public static final int TAG_RESOLUTION = 0x32;
    public static final int TAG_RANGE_INTEGER = 0x33;

    public static final int TAG_TEXT_LANGUAGE = 0x35;
    public static final int TAG_NAME_LANGUAGE = 0x36;

    public static final int TAG_TEXT_WO_LANGUAGE = 0x41;
    public static final int TAG_NAME_WO_LANGUAGE = 0x42;
    public static final int TAG_KEYWORD = 0x44;
    public static final int TAG_URI = 0x45;
    public static final int TAG_CHARSET = 0x47;
    public static final int TAG_NATURALLANGUAGE = 0x48;
    public static final int TAG_MIME_MEDIATYPE = 0x49;
    public static final int TAG_MEMBER_ATTRNAME = 0x4A;


    public static final AttributeClass ATTRIBUTES_CHARSET =
        new AttributeClass("attributes-charset",
                           TAG_CHARSET, "utf-8");
    public static final AttributeClass ATTRIBUTES_NATURAL_LANGUAGE =
        new AttributeClass("attributes-natural-language",
                           TAG_NATURALLANGUAGE, "en");

    /*
     * value passed in by IPPPrintService.readIPPResponse is a sequence
     * of bytes with this format
     * | length1 | byte1 | byte 2 | ... byten | length2 | byte1 ... byten |
     *      :
     * | lengthN | byte1 ... byten | total number of values|
     */
    protected AttributeClass(String name, int type, Object value) {
        myName = name;
        myType = type;
        nameLen = name.length();
        myValue = value;
    }

    public byte getType() {
        return (byte)myType;
    }

    public char[] getLenChars() {
        char[] chars = new char[2];
        chars[0] = 0;
        chars[1] = (char)nameLen;
        return chars;
    }

    
Returns raw data.
/** * Returns raw data. */
public Object getObjectValue() { return myValue; }
Returns single int value.
/** * Returns single int value. */
public int getIntValue() { byte[] bufArray = (byte[])myValue; if (bufArray != null) { byte[] buf = new byte[4]; for (int i=0; i<4; i++) { buf[i] = bufArray[i+1]; } return convertToInt(buf); } return 0; }
Returns array of int values.
/** * Returns array of int values. */
public int[] getArrayOfIntValues() { byte[] bufArray = (byte[])myValue; if (bufArray != null) { //ArrayList valList = new ArrayList(); ByteArrayInputStream bufStream = new ByteArrayInputStream(bufArray); int available = bufStream.available(); // total number of values is at the end of the stream bufStream.mark(available); bufStream.skip(available-1); int length = bufStream.read(); bufStream.reset(); int[] valueArray = new int[length]; for (int i = 0; i < length; i++) { // read length int valLength = bufStream.read(); if (valLength != 4) { // invalid data return null; } byte[] bufBytes = new byte[valLength]; bufStream.read(bufBytes, 0, valLength); valueArray[i] = convertToInt(bufBytes); } return valueArray; } return null; }
Returns 2 int values.
/** * Returns 2 int values. */
public int[] getIntRangeValue() { int[] range = {0, 0}; byte[] bufArray = (byte[])myValue; if (bufArray != null) { int nBytes = 4; // 32-bit signed integer for (int j=0; j<2; j++) { // 2 set of integers byte[] intBytes = new byte[nBytes]; // REMIND: # bytes should be 8 for (int i=0; i< nBytes; i++) { //+ 1 because the 1st byte is length intBytes[i] = bufArray[i+(4*j)+1]; } range[j] = convertToInt(intBytes); } } return range; }
Returns String value.
/** * Returns String value. */
public String getStringValue() { //assumes only 1 attribute value. Will get the first value // if > 1. String strVal = null; byte[] bufArray = (byte[])myValue; if (bufArray != null) { ByteArrayInputStream bufStream = new ByteArrayInputStream(bufArray); int valLength = bufStream.read(); byte[] strBytes = new byte[valLength]; bufStream.read(strBytes, 0, valLength); try { strVal = new String(strBytes, "UTF-8"); } catch (java.io.UnsupportedEncodingException uee) { } } return strVal; }
Returns array of String values.
/** * Returns array of String values. */
public String[] getArrayOfStringValues() { byte[] bufArray = (byte[])myValue; if (bufArray != null) { ByteArrayInputStream bufStream = new ByteArrayInputStream(bufArray); int available = bufStream.available(); // total number of values is at the end of the stream bufStream.mark(available); bufStream.skip(available-1); int length = bufStream.read(); bufStream.reset(); String[] valueArray = new String[length]; for (int i = 0; i < length; i++) { // read length int valLength = bufStream.read(); byte[] bufBytes = new byte[valLength]; bufStream.read(bufBytes, 0, valLength); try { valueArray[i] = new String(bufBytes, "UTF-8"); } catch (java.io.UnsupportedEncodingException uee) { } } return valueArray; } return null; }
Returns single byte value.
/** * Returns single byte value. */
public byte getByteValue() { byte[] bufArray = (byte[])myValue; if ((bufArray != null) && (bufArray.length>=2)) { return bufArray[1]; } return 0; }
Returns attribute name.
/** * Returns attribute name. */
public String getName() { return myName; } @Override public boolean equals(Object obj) { if (!(obj instanceof AttributeClass)) { return false; } if (this == obj) { return true; } AttributeClass acObj = (AttributeClass) obj; return myType == acObj.getType() && Objects.equals(myName, acObj.getName()) && Objects.equals(myValue, acObj.getObjectValue()); } @Override public int hashCode() { return Objects.hash(myType, myName, myValue); } public String toString() { return myName; } private int unsignedByteToInt(byte b) { return (b & 0xff); } private int convertToInt(byte[] buf) { int intVal = 0; int pos = 0; intVal+= unsignedByteToInt(buf[pos++]) << 24; intVal+= unsignedByteToInt(buf[pos++]) << 16; intVal+= unsignedByteToInt(buf[pos++]) << 8; intVal+= unsignedByteToInt(buf[pos++]) << 0; return intVal; } }