| /* |
| * 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.ignite.failure; |
| |
| import java.util.Collections; |
| import java.util.EnumSet; |
| import java.util.Set; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.internal.util.tostring.GridToStringInclude; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| |
| import static org.apache.ignite.failure.FailureType.SYSTEM_CRITICAL_OPERATION_TIMEOUT; |
| import static org.apache.ignite.failure.FailureType.SYSTEM_WORKER_BLOCKED; |
| |
| /** |
| * Abstract superclass for {@link FailureHandler} implementations. |
| * Maintains a set of ignored failure types. Failure handler will not invalidate kernal context for this failures |
| * and will not handle it. |
| */ |
| public abstract class AbstractFailureHandler implements FailureHandler { |
| /** */ |
| @GridToStringInclude |
| private Set<FailureType> ignoredFailureTypes = |
| Collections.unmodifiableSet(EnumSet.of(SYSTEM_WORKER_BLOCKED, SYSTEM_CRITICAL_OPERATION_TIMEOUT)); |
| |
| /** |
| * Sets failure types that must be ignored by failure handler. |
| * |
| * @param failureTypes Set of failure type that must be ignored. |
| * @see FailureType |
| */ |
| public void setIgnoredFailureTypes(Set<FailureType> failureTypes) { |
| ignoredFailureTypes = Collections.unmodifiableSet(failureTypes); |
| } |
| |
| /** |
| * Returns unmodifiable set of ignored failure types. |
| */ |
| public Set<FailureType> getIgnoredFailureTypes() { |
| return ignoredFailureTypes; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public boolean onFailure(Ignite ignite, FailureContext failureCtx) { |
| return !ignoredFailureTypes.contains(failureCtx.type()) && handle(ignite, failureCtx); |
| } |
| |
| /** |
| * Actual failure handling. This method is not called for ignored failure types. |
| * |
| * @see #setIgnoredFailureTypes(Set). |
| * @see FailureHandler#onFailure(Ignite, FailureContext). |
| */ |
| protected abstract boolean handle(Ignite ignite, FailureContext failureCtx); |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(AbstractFailureHandler.class, this); |
| } |
| } |