com.couchbase.client.core.deps.io.netty.handler.codec.DecoderResult Maven / Gradle / Ivy
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The official Couchbase JVM Core IO Library
/*
* Copyright 2012 The Netty Project
*
* The Netty Project 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:
*
* https://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.couchbase.client.core.deps.io.netty.handler.codec;
import com.couchbase.client.core.deps.io.netty.util.Signal;
import com.couchbase.client.core.deps.io.netty.util.internal.ObjectUtil;
public class DecoderResult {
protected static final Signal SIGNAL_UNFINISHED = Signal.valueOf(DecoderResult.class, "UNFINISHED");
protected static final Signal SIGNAL_SUCCESS = Signal.valueOf(DecoderResult.class, "SUCCESS");
public static final DecoderResult UNFINISHED = new DecoderResult(SIGNAL_UNFINISHED);
public static final DecoderResult SUCCESS = new DecoderResult(SIGNAL_SUCCESS);
public static DecoderResult failure(Throwable cause) {
return new DecoderResult(ObjectUtil.checkNotNull(cause, "cause"));
}
private final Throwable cause;
protected DecoderResult(Throwable cause) {
this.cause = ObjectUtil.checkNotNull(cause, "cause");
}
public boolean isFinished() {
return cause != SIGNAL_UNFINISHED;
}
public boolean isSuccess() {
return cause == SIGNAL_SUCCESS;
}
public boolean isFailure() {
return cause != SIGNAL_SUCCESS && cause != SIGNAL_UNFINISHED;
}
public Throwable cause() {
if (isFailure()) {
return cause;
} else {
return null;
}
}
@Override
public String toString() {
if (isFinished()) {
if (isSuccess()) {
return "success";
}
String cause = cause().toString();
return new StringBuilder(cause.length() + 17)
.append("failure(")
.append(cause)
.append(')')
.toString();
} else {
return "unfinished";
}
}
}