| /* |
| * 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. |
| */ |
| package org.apache.felix.http.base.internal.whiteboard; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.felix.http.base.internal.runtime.AbstractInfo; |
| import org.apache.felix.http.base.internal.runtime.dto.FailedDTOHolder; |
| |
| public class FailureStateHandler { |
| |
| private static final class FailureStatus |
| { |
| public final Map<Integer, Set<Long>> reasonToContextsMapping = new ConcurrentHashMap<Integer, Set<Long>>(); |
| } |
| |
| private final Map<AbstractInfo<?>, FailureStatus> serviceFailures = new ConcurrentHashMap<AbstractInfo<?>, FailureStatus>(); |
| |
| /** |
| * Remove all failures. |
| */ |
| public void clear() |
| { |
| this.serviceFailures.clear(); |
| } |
| |
| public void add(final AbstractInfo<?> info, final int reason) |
| { |
| this.add(info, 0, reason); |
| } |
| |
| public void add(final AbstractInfo<?> info, final long contextId, final int reason) |
| { |
| FailureStatus status = serviceFailures.get(info); |
| if ( status == null ) |
| { |
| // we don't need to sync the add operation, that's taken care of by the caller. |
| status = new FailureStatus(); |
| this.serviceFailures.put(info, status); |
| } |
| Set<Long> contexts = status.reasonToContextsMapping.get(reason); |
| if ( contexts == null ) |
| { |
| contexts = new HashSet<Long>(); |
| } |
| else |
| { |
| contexts = new HashSet<Long>(contexts); |
| } |
| contexts.add(contextId); |
| status.reasonToContextsMapping.put(reason, contexts); |
| } |
| |
| public boolean remove(final AbstractInfo<?> info) |
| { |
| return remove(info, 0); |
| } |
| |
| public boolean removeAll(final AbstractInfo<?> info) |
| { |
| final boolean result = remove(info, 0); |
| this.serviceFailures.remove(info); |
| return result; |
| } |
| |
| public boolean remove(final AbstractInfo<?> info, final long contextId) |
| { |
| final FailureStatus status = serviceFailures.get(info); |
| if ( status != null ) |
| { |
| final Iterator<Map.Entry<Integer, Set<Long>>> i = status.reasonToContextsMapping.entrySet().iterator(); |
| while ( i.hasNext() ) |
| { |
| final Map.Entry<Integer, Set<Long>> entry = i.next(); |
| if ( entry.getValue().contains(contextId) ) |
| { |
| if ( entry.getValue().size() == 1 ) |
| { |
| i.remove(); |
| } |
| else |
| { |
| final Set<Long> set = new HashSet<Long>(entry.getValue()); |
| set.remove(contextId); |
| entry.setValue(set); |
| } |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| public void getRuntimeInfo(final FailedDTOHolder failedDTOHolder) { |
| for(final Map.Entry<AbstractInfo<?>, FailureStatus> entry : this.serviceFailures.entrySet() ) |
| { |
| final Iterator<Map.Entry<Integer, Set<Long>>> i = entry.getValue().reasonToContextsMapping.entrySet().iterator(); |
| while ( i.hasNext() ) |
| { |
| final Map.Entry<Integer, Set<Long>> status = i.next(); |
| |
| for(final long contextId : status.getValue()) |
| { |
| failedDTOHolder.add(entry.getKey(), contextId, status.getKey()); |
| } |
| } |
| } |
| |
| } |
| } |