/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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.
 */
/**
* @author Boris V. Kuznetsov
* @version $Revision$
*/

package org.apache.harmony.security.tests.support;

import java.security.InvalidKeyException;
import java.security.InvalidParameterException;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.SignatureException;

/**
 * Tests implementation of Signature
 * 
 */
public class MySignature1 extends Signature {

    public boolean runEngineInitVerify = false;
    public boolean runEngineInitSign = false;
    public boolean runEngineUpdate1 = false;
    public boolean runEngineUpdate2 = false;    
    public boolean runEngineSign = false;
    public boolean runEngineVerify = false;
    public boolean runEngineSetParameter = false;    
    public boolean runEngineGetParameter = false;
    
    public static int SIGN = Signature.SIGN;
    public static int VERIFY = Signature.VERIFY;
    public static int UNINITIALIZED = Signature.UNINITIALIZED;
    private final int BUFFER_LENGTH = 10; 
    /**
     * 
     *
     */
    public MySignature1() {
        super(null);
    }
    
    /**
     * 
     * @param algorithm
     */
    public MySignature1(String algorithm) {
        super(algorithm);
    }
    
    protected void engineInitVerify(PublicKey publicKey)
            throws InvalidKeyException {
        runEngineInitVerify = true;
    }

    protected void engineInitSign(PrivateKey privateKey)
            throws InvalidKeyException {
        runEngineInitSign = true;
    }

    protected void engineUpdate(byte b) throws SignatureException {
        runEngineUpdate1 = true;
    }

    protected void engineUpdate(byte[] b, int off, int len)
            throws SignatureException {
        if (b == null) throw new NullPointerException();
        if (off < 0 || off > b.length || off > len) {
            throw new IllegalArgumentException("incorrect parameter off");
        }
        if (len < 0 || len > b.length) {
            throw new IllegalArgumentException("incorrect parameter len");
        }
        runEngineUpdate2 = true;
    }

    protected byte[] engineSign() throws SignatureException {
        runEngineSign = true;
        byte [] out = new byte [BUFFER_LENGTH];
        return out;
    }

    protected boolean engineVerify(byte[] sigBytes) throws SignatureException {
        runEngineVerify = true;
        return false;
    }

    protected void engineSetParameter(String param, Object value)
            throws InvalidParameterException {
        runEngineSetParameter = true;
    }

    protected Object engineGetParameter(String param)
            throws InvalidParameterException {
        runEngineGetParameter = true;
        return null;
    }
    
    public int getState() {
        return state;
    }
    
    public int getBufferLength() {
        return BUFFER_LENGTH;
    }
}