| /* |
| * 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.geode.internal.cache.execute; |
| |
| import org.apache.geode.cache.Cache; |
| import org.apache.geode.cache.CacheClosedException; |
| import org.apache.geode.cache.execute.Execution; |
| import org.apache.geode.cache.execute.Function; |
| import org.apache.geode.cache.execute.FunctionContext; |
| import org.apache.geode.cache.execute.RegionFunctionContext; |
| import org.apache.geode.cache.execute.ResultSender; |
| import org.apache.geode.internal.cache.InternalCache; |
| |
| /** |
| * Context available to application functions which is passed from GemFire to {@link Function}. <br> |
| * |
| * For data dependent functions refer to {@link RegionFunctionContext} |
| * |
| * |
| * @since GemFire 6.0 |
| * |
| * @see RegionFunctionContextImpl |
| * |
| */ |
| public class FunctionContextImpl implements FunctionContext { |
| |
| private Object args = null; |
| |
| private String functionId = null; |
| |
| private Cache cache = null; |
| |
| private ResultSender resultSender = null; |
| |
| private final boolean isPossDup; |
| |
| private final Object principal; |
| |
| public FunctionContextImpl(final Cache cache, final String functionId, final Object args, |
| ResultSender resultSender) { |
| this(cache, functionId, args, resultSender, false); |
| } |
| |
| public FunctionContextImpl(final Cache cache, final String functionId, final Object args, |
| ResultSender resultSender, boolean isPossibleDuplicate) { |
| this.cache = cache; |
| this.functionId = functionId; |
| this.args = args; |
| this.resultSender = resultSender; |
| this.isPossDup = isPossibleDuplicate; |
| |
| Object tmpPrincipal = null; |
| if (cache != null) { |
| if (((InternalCache) cache).getSecurityService() != null) { |
| tmpPrincipal = ((InternalCache) cache).getSecurityService().getPrincipal(); |
| } |
| } |
| this.principal = tmpPrincipal; |
| } |
| |
| /** |
| * Returns the arguments provided to this function execution. These are the arguments specified by |
| * caller using {@link Execution#setArguments(Object)} |
| * |
| * @return the arguments or null if there are no arguments |
| */ |
| @Override |
| public Object getArguments() { |
| return this.args; |
| } |
| |
| /** |
| * Get the identifier of the running function used for logging and administration purposes |
| * |
| * @return String uniquely identifying this running instance |
| * @see Function#getId() |
| */ |
| @Override |
| public String getFunctionId() { |
| return this.functionId; |
| } |
| |
| @Override |
| public String toString() { |
| final StringBuilder buf = new StringBuilder(); |
| buf.append("[FunctionContextImpl:"); |
| buf.append("functionId="); |
| buf.append(this.functionId); |
| buf.append(";args="); |
| buf.append(this.args); |
| buf.append(";principal="); |
| buf.append(getPrincipal()); |
| buf.append(']'); |
| return buf.toString(); |
| } |
| |
| @Override |
| public ResultSender getResultSender() { |
| return this.resultSender; |
| } |
| |
| @Override |
| public boolean isPossibleDuplicate() { |
| return this.isPossDup; |
| } |
| |
| @Override |
| public Cache getCache() throws CacheClosedException { |
| if (cache == null) { |
| throw new CacheClosedException("FunctionContext does not have a valid Cache"); |
| } |
| return cache; |
| } |
| |
| @Override |
| public Object getPrincipal() { |
| return principal; |
| } |
| } |