org.apache.james.transport.mailets.remoteDelivery.ExecutionResult.java Source code

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Here is the source code for org.apache.james.transport.mailets.remoteDelivery.ExecutionResult.java

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 * 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   *
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package org.apache.james.transport.mailets.remoteDelivery;

import com.google.common.base.Objects;
import com.google.common.base.Optional;

public class ExecutionResult {

    public enum ExecutionState {
        SUCCESS, PERMANENT_FAILURE, TEMPORARY_FAILURE
    }

    public static ExecutionResult success() {
        return new ExecutionResult(ExecutionState.SUCCESS, Optional.<Exception>absent());
    }

    public static ExecutionResult temporaryFailure(Exception e) {
        return new ExecutionResult(ExecutionState.TEMPORARY_FAILURE, Optional.of(e));
    }

    public static ExecutionResult permanentFailure(Exception e) {
        return new ExecutionResult(ExecutionState.PERMANENT_FAILURE, Optional.of(e));
    }

    public static ExecutionResult temporaryFailure() {
        return new ExecutionResult(ExecutionState.TEMPORARY_FAILURE, Optional.<Exception>absent());
    }

    public static ExecutionResult onFailure(boolean permanent, Exception exeption) {
        if (permanent) {
            return permanentFailure(exeption);
        } else {
            return temporaryFailure(exeption);
        }
    }

    private final ExecutionState executionState;
    private final Optional<Exception> exception;

    public ExecutionResult(ExecutionState executionState, Optional<Exception> exception) {
        this.executionState = executionState;
        this.exception = exception;
    }

    public ExecutionState getExecutionState() {
        return executionState;
    }

    public Optional<Exception> getException() {
        return exception;
    }

    public boolean isPermanent() {
        return executionState == ExecutionState.PERMANENT_FAILURE;
    }

    @Override
    public boolean equals(Object o) {
        if (o instanceof ExecutionResult) {
            ExecutionResult that = (ExecutionResult) o;
            return Objects.equal(this.executionState, that.executionState)
                    && Objects.equal(this.exception, that.exception);
        }
        return false;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(executionState, exception);
    }
}