dubbo FormattingTuple 源码

2022-10-20
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dubbo FormattingTuple 代码

文件路径：/dubbo-remoting/dubbo-remoting-netty4/src/main/java/org/apache/dubbo/remoting/transport/netty4/logging/FormattingTuple.java

/*
 * 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.dubbo.remoting.transport.netty4.logging;


import org.apache.dubbo.common.utils.ArrayUtils;

/**
 * Holds the results of formatting done by {@link MessageFormatter}.
 */
class FormattingTuple {

    static final FormattingTuple NULL = new FormattingTuple(null);

    private final String message;
    private final Throwable throwable;
    private final Object[] argArray;

    FormattingTuple(String message) {
        this(message, null, null);
    }

    FormattingTuple(String message, Object[] argArray, Throwable throwable) {
        this.message = message;
        this.throwable = throwable;
        if (throwable == null) {
            this.argArray = argArray;
        } else {
            this.argArray = trimmedCopy(argArray);
        }
    }

    static Object[] trimmedCopy(Object[] argArray) {
        if (ArrayUtils.isEmpty(argArray)) {
            throw new IllegalStateException("non-sensical empty or null argument array");
        }
        final int trimmedLen = argArray.length - 1;
        Object[] trimmed = new Object[trimmedLen];
        System.arraycopy(argArray, 0, trimmed, 0, trimmedLen);
        return trimmed;
    }

    public String getMessage() {
        return message;
    }

    public Object[] getArgArray() {
        return argArray;
    }

    public Throwable getThrowable() {
        return throwable;
    }
}

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所属分类： 后端技术
本文标签： Java
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