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Unify AndFilter and OrFilter
AndFilter and OrFilter are dual; there is no reason why they should have differing interfaces.
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parent
9ac882241a
commit
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3 changed files with 32 additions and 42 deletions
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@ -17,10 +17,11 @@
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package org.jivesoftware.smack.filter;
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import org.jivesoftware.smack.packet.Packet;
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import java.util.List;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import org.jivesoftware.smack.packet.Packet;
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/**
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* Implements the logical AND operation over two or more packet filters.
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@ -33,14 +34,14 @@ public class AndFilter implements PacketFilter {
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/**
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* The list of filters.
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*/
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private List<PacketFilter> filters = new ArrayList<PacketFilter>();
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private final List<PacketFilter> filters;
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/**
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* Creates an empty AND filter. Filters should be added using the
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* {@link #addFilter(PacketFilter)} method.
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*/
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public AndFilter() {
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filters = new ArrayList<PacketFilter>();
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}
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/**
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@ -56,8 +57,8 @@ public class AndFilter implements PacketFilter {
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if(filter == null) {
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throw new IllegalArgumentException("Parameter cannot be null.");
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}
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this.filters.add(filter);
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}
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this.filters = new ArrayList<PacketFilter>(Arrays.asList(filters));
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}
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/**
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@ -17,6 +17,10 @@
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package org.jivesoftware.smack.filter;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import org.jivesoftware.smack.packet.Packet;
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/**
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@ -27,39 +31,34 @@ import org.jivesoftware.smack.packet.Packet;
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*/
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public class OrFilter implements PacketFilter {
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/**
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* The current number of elements in the filter.
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*/
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private int size;
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/**
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* The list of filters.
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*/
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private PacketFilter [] filters;
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private final List<PacketFilter> filters;
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/**
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* Creates an empty OR filter. Filters should be added using the
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* {@link #addFilter(PacketFilter)} method.
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*/
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public OrFilter() {
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size = 0;
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filters = new PacketFilter[3];
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filters = new ArrayList<PacketFilter>();
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}
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/**
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* Creates an OR filter using the two specified filters.
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* Creates an OR filter using the specified filters.
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*
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* @param filter1 the first packet filter.
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* @param filter2 the second packet filter.
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* @param filters the filters to add.
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*/
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public OrFilter(PacketFilter filter1, PacketFilter filter2) {
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if (filter1 == null || filter2 == null) {
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throw new IllegalArgumentException("Parameters cannot be null.");
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public OrFilter(PacketFilter... filters) {
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if (filters == null) {
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throw new IllegalArgumentException("Parameter cannot be null.");
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}
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size = 2;
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filters = new PacketFilter[2];
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filters[0] = filter1;
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filters[1] = filter2;
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for(PacketFilter filter : filters) {
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if(filter == null) {
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throw new IllegalArgumentException("Parameter cannot be null.");
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}
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}
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this.filters = new ArrayList<PacketFilter>(Arrays.asList(filters));
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}
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/**
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@ -72,22 +71,12 @@ public class OrFilter implements PacketFilter {
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if (filter == null) {
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throw new IllegalArgumentException("Parameter cannot be null.");
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}
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// If there is no more room left in the filters array, expand it.
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if (size == filters.length) {
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PacketFilter [] newFilters = new PacketFilter[filters.length+2];
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for (int i=0; i<filters.length; i++) {
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newFilters[i] = filters[i];
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}
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filters = newFilters;
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}
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// Add the new filter to the array.
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filters[size] = filter;
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size++;
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filters.add(filter);
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}
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public boolean accept(Packet packet) {
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for (int i=0; i<size; i++) {
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if (filters[i].accept(packet)) {
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for (PacketFilter filter : filters) {
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if (filter.accept(packet)) {
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return true;
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}
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}
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@ -107,11 +107,11 @@ public class AgentSession {
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queueUsersListeners = new ArrayList<QueueUsersListener>();
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// Create a filter to listen for packets we're interested in.
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OrFilter filter = new OrFilter();
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filter.addFilter(new PacketTypeFilter(OfferRequestProvider.OfferRequestPacket.class));
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filter.addFilter(new PacketTypeFilter(OfferRevokeProvider.OfferRevokePacket.class));
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filter.addFilter(new PacketTypeFilter(Presence.class));
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filter.addFilter(new PacketTypeFilter(Message.class));
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OrFilter filter = new OrFilter(
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new PacketTypeFilter(OfferRequestProvider.OfferRequestPacket.class),
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new PacketTypeFilter(OfferRevokeProvider.OfferRevokePacket.class),
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new PacketTypeFilter(Presence.class),
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new PacketTypeFilter(Message.class));
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packetListener = new PacketListener() {
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public void processPacket(Packet packet) {
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