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JAMES-1877 Simplify MessageComposer API with ExecutionResult
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76 changes: 76 additions & 0 deletions
76
...lets/src/main/java/org/apache/james/transport/mailets/remoteDelivery/ExecutionResult.java
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| /**************************************************************** | ||
| * 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. * | ||
| ****************************************************************/ | ||
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| package org.apache.james.transport.mailets.remoteDelivery; | ||
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| import com.google.common.base.Optional; | ||
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| public class ExecutionResult { | ||
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| public enum ExecutionState { | ||
| SUCCESS, | ||
| PERMANENT_FAILURE, | ||
| TEMPORARY_FAILURE | ||
| } | ||
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| public static ExecutionResult success() { | ||
| return new ExecutionResult(ExecutionState.SUCCESS, Optional.<Exception>absent()); | ||
| } | ||
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| public static ExecutionResult temporaryFailure(Exception e) { | ||
| return new ExecutionResult(ExecutionState.TEMPORARY_FAILURE, Optional.of(e)); | ||
| } | ||
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| public static ExecutionResult permanentFailure(Exception e) { | ||
| return new ExecutionResult(ExecutionState.PERMANENT_FAILURE, Optional.of(e)); | ||
| } | ||
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| public static ExecutionResult temporaryFailure() { | ||
| return new ExecutionResult(ExecutionState.TEMPORARY_FAILURE, Optional.<Exception>absent()); | ||
| } | ||
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| public static ExecutionResult onFailure(boolean permanent, Exception exeption) { | ||
| if (permanent) { | ||
| return permanentFailure(exeption); | ||
| } else { | ||
| return temporaryFailure(exeption); | ||
| } | ||
| } | ||
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| private final ExecutionState executionState; | ||
| private final Optional<Exception> exception; | ||
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| public ExecutionResult(ExecutionState executionState, Optional<Exception> exception) { | ||
| this.executionState = executionState; | ||
| this.exception = exception; | ||
| } | ||
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| public ExecutionState getExecutionState() { | ||
| return executionState; | ||
| } | ||
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| public Optional<Exception> getException() { | ||
| return exception; | ||
| } | ||
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| public boolean isPermanent() { | ||
| return executionState == ExecutionState.PERMANENT_FAILURE; | ||
| } | ||
| } | ||
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