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The free Java library for Asterisk PBX integration.

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package org.asteriskjava.pbx.asterisk.wrap.events;

import org.asteriskjava.pbx.Channel;
import org.asteriskjava.pbx.InvalidChannelName;
import org.asteriskjava.pbx.PBXFactory;
import org.asteriskjava.pbx.internal.core.AsteriskPBX;

public abstract class ChannelEventHelper extends ManagerEvent implements ChannelEvent {
    private static final long serialVersionUID = 1L;

    /**
     * The name of the channel.
     */
    private final Channel channel;

    protected ChannelEventHelper(final org.asteriskjava.manager.event.AbstractChannelEvent event) throws InvalidChannelName {
        this(event.getChannel(), event.getUniqueId(), event.getCallerIdNum(), event.getCallerIdName());
    }

    protected ChannelEventHelper(final String channel, final String uniqueId, final String callerIdNum,
                                 final String callerIdName) throws InvalidChannelName {
        super(""); // we must have a source but since don't have one pass
        // anything.
        if (channel != null) {
            this.channel = ChannelEventHelper.registerChannel(channel, uniqueId, callerIdNum, callerIdName);
        } else {
            this.channel = null;
        }
    }

    public ChannelEventHelper(final String channel, final String uniqueId) throws InvalidChannelName {
        super("");// we must have a source but since don't have one pass
        // anything.
        final AsteriskPBX pbx = (AsteriskPBX) PBXFactory.getActivePBX();
        if (channel != null) {
            this.channel = pbx.internalRegisterChannel(channel, uniqueId);
        } else {
            this.channel = null;
        }
    }

    @Override
    public Channel getChannel() {
        return this.channel;
    }

    public static Channel registerChannel(final String channelName, final String uniqueId, final String callerIdNum,
                                          final String callerIdName) throws InvalidChannelName {
        final AsteriskPBX pbx = (AsteriskPBX) PBXFactory.getActivePBX();

        final Channel channel = pbx.internalRegisterChannel(channelName, uniqueId);
        channel.setCallerId(pbx.buildCallerID(callerIdNum, callerIdName));
        return channel;
    }
}