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/****************************************************************************
* Copyright (c) 2008 Composent, Inc. and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.telephony.call.dtmf;
import java.io.ObjectStreamException;
import java.io.Serializable;
import org.eclipse.ecf.telephony.call.CallException;
/**
* ICallSession adapter for sending DTMF codes during a call session.
*/
public interface IDTMFCallSessionAdapter {
public static class DTMF implements Serializable {
private static final long serialVersionUID = -4664398793204446391L;
private static final char TYPE_0_CHAR = '0';
private static final char TYPE_1_CHAR = '1';
private static final char TYPE_2_CHAR = '2';
private static final char TYPE_3_CHAR = '3';
private static final char TYPE_4_CHAR = '4';
private static final char TYPE_5_CHAR = '5';
private static final char TYPE_6_CHAR = '6';
private static final char TYPE_7_CHAR = '7';
private static final char TYPE_8_CHAR = '8';
private static final char TYPE_9_CHAR = '9';
private static final char TYPE_ASTERISK_CHAR = '*';
private static final char TYPE_SHARP_CHAR = '#';
private final transient char type;
protected DTMF(char c) {
this.type = c;
}
public static final DTMF TYPE_0 = new DTMF(TYPE_0_CHAR);
public static final DTMF TYPE_1 = new DTMF(TYPE_1_CHAR);
public static final DTMF TYPE_2 = new DTMF(TYPE_2_CHAR);
public static final DTMF TYPE_3 = new DTMF(TYPE_3_CHAR);
public static final DTMF TYPE_4 = new DTMF(TYPE_4_CHAR);
public static final DTMF TYPE_5 = new DTMF(TYPE_5_CHAR);
public static final DTMF TYPE_6 = new DTMF(TYPE_6_CHAR);
public static final DTMF TYPE_7 = new DTMF(TYPE_7_CHAR);
public static final DTMF TYPE_8 = new DTMF(TYPE_8_CHAR);
public static final DTMF TYPE_9 = new DTMF(TYPE_9_CHAR);
public static final DTMF TYPE_SHARP = new DTMF(TYPE_SHARP_CHAR);
public static final DTMF TYPE_ASTERISK = new DTMF(TYPE_ASTERISK_CHAR);
public static DTMF fromChar(char c) {
return new DTMF(c);
}
public char toChar() {
return type;
}
// This is to make sure that subclasses don't screw up these methods
public final boolean equals(Object that) {
return super.equals(that);
}
public final int hashCode() {
return super.hashCode();
}
// For serialization
private static int nextOrdinal = 0;
private final int ordinal = nextOrdinal++;
private static final DTMF[] VALUES = {TYPE_0, TYPE_1, TYPE_2, TYPE_3, TYPE_4, TYPE_5, TYPE_6, TYPE_7, TYPE_8, TYPE_9, TYPE_SHARP, TYPE_ASTERISK};
/**
* @return Object
* @throws ObjectStreamException not thrown by this implementation.
*/
Object readResolve() throws ObjectStreamException {
return VALUES[ordinal];
}
}
/**
* Send DTMF to receiver.
*
* @param command the DTMF command to send. Must not be <code>null</code>.
* @throws CallException if problem with sending (e.g. no longer connected).
*/
public void sendDTMF(DTMF command) throws CallException;
}
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