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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed 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 com.android.layoutlib.api;
/**
* Scene result class.
*/
public class SceneResult {
private final SceneStatus mStatus;
private final String mErrorMessage;
private final Throwable mThrowable;
public enum SceneStatus {
SUCCESS,
NOT_IMPLEMENTED,
ERROR_TIMEOUT,
ERROR_LOCK_INTERRUPTED,
ERROR_UNKNOWN;
/**
* Returns a {@link SceneResult} object with this status.
* @return an instance of SceneResult;
*/
public SceneResult getResult() {
// don't want to get generic error that way.
assert this != ERROR_UNKNOWN;
if (this == SUCCESS) {
return SceneResult.SUCCESS;
}
return new SceneResult(this);
}
}
/**
* Singleton SUCCESS {@link SceneResult} object.
*/
public static final SceneResult SUCCESS = new SceneResult(SceneStatus.SUCCESS);
/**
* Creates a {@link SceneResult} object, with {@link SceneStatus#ERROR_UNKNOWN} status, and
* the given message.
*/
public SceneResult(String errorMessage) {
mStatus = SceneStatus.ERROR_UNKNOWN;
mErrorMessage = errorMessage;
mThrowable = null;
}
/**
* Creates a {@link SceneResult} object, with {@link SceneStatus#ERROR_UNKNOWN} status, and
* the given message and {@link Throwable}
*/
public SceneResult(String errorMessage, Throwable t) {
mStatus = SceneStatus.ERROR_UNKNOWN;
mErrorMessage = errorMessage;
mThrowable = t;
}
/**
* Creates a{@link SceneResult} object with the given SceneStatus.
*
* @param status the status
*/
private SceneResult(SceneStatus status) {
mStatus = status;
mErrorMessage = null;
mThrowable = null;
}
/**
* Returns the status. This is never null.
*/
public SceneStatus getStatus() {
return mStatus;
}
/**
* Returns the error message. This is only non-null when {@link #getStatus()} returns
* {@link SceneStatus#ERROR_UNKNOWN}
*/
public String getErrorMessage() {
return mErrorMessage;
}
/**
* Returns the exception. This is only non-null when {@link #getStatus()} returns
* {@link SceneStatus#ERROR_UNKNOWN}
*/
public Throwable getException() {
return mThrowable;
}
}
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