net.mikaboshi.intra_mart.tools.log_stats.entity.ExceptionLog.java Source code

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Here is the source code for net.mikaboshi.intra_mart.tools.log_stats.entity.ExceptionLog.java

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/*
 * 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 net.mikaboshi.intra_mart.tools.log_stats.entity;

import net.mikaboshi.intra_mart.tools.log_stats.util.LogStringUtil;

import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;

/**
 * 
 *
 * @version 1.0.9
 * @author <a href="https://github.com/cwan">cwan</a>
 */
public class ExceptionLog extends Log {

    /**
     * ????
     *
     * @since 1.0.8
     */
    public static enum GroupingType {

        /** ?1 */
        FIEST_LINE,

        /** ??Caused by */
        CAUSE;
    }

    /**
     * 
     */
    public String stackTrace = null;

    /**
     * ????
     */
    public GroupingType groupingType = GroupingType.CAUSE;

    /**
     * ?1??
     * @return
     */
    public String getFirstLineOfStackTrace() {

        if (this.stackTrace == null) {
            return null;
        }

        for (int i = 0; i < this.stackTrace.length(); i++) {

            char c = this.stackTrace.charAt(i);

            if (c == '\r' || c == '\n' || c == '\t') {
                return this.stackTrace.substring(0, i);
            }
        }

        return this.stackTrace;
    }

    /**
     * ??Cause??
     * @return
     * @since 1.0.8
     */
    public String getCauseLineOfStackTrace() {

        if (this.stackTrace == null) {
            return null;
        }

        String cause = null;
        final String prefix = "Caused by: ";

        for (String line : LogStringUtil.lines(this.stackTrace)) {

            if (cause == null) {
                cause = line;
                continue;
            }

            if (line.startsWith(prefix)) {
                cause = line.substring(prefix.length());
                continue;
            }
        }

        return cause;
    }

    /**
     * ???
     * @return
     * @since 1.0.8
     */
    public String getGroupingLineOfStackTrace() {

        switch (this.groupingType) {
        case CAUSE:
            return getCauseLineOfStackTrace();
        case FIEST_LINE:
            return getFirstLineOfStackTrace();
        default:
            return null;
        }
    }

    @Override
    public boolean equals(Object obj) {

        if (obj == null || !(obj instanceof ExceptionLog)) {
            return false;
        }

        ExceptionLog log2 = (ExceptionLog) obj;

        EqualsBuilder equalsBuilder = new EqualsBuilder();
        equalsBuilder.append(this.level, log2.level);

        switch (this.groupingType) {
        case CAUSE:
            equalsBuilder.append(this.getCauseLineOfStackTrace(), log2.getCauseLineOfStackTrace());
            break;

        case FIEST_LINE:
            equalsBuilder.append(this.getFirstLineOfStackTrace(), log2.getFirstLineOfStackTrace());
            equalsBuilder.append(this.message, log2.message);
            break;
        }

        return equalsBuilder.isEquals();
    }

    @Override
    public int hashCode() {

        HashCodeBuilder hashCodeBuilder = new HashCodeBuilder();
        hashCodeBuilder.append(this.level);

        switch (this.groupingType) {
        case CAUSE:
            hashCodeBuilder.append(this.getCauseLineOfStackTrace());
            break;

        case FIEST_LINE:
            hashCodeBuilder.append(this.getFirstLineOfStackTrace());
            hashCodeBuilder.append(this.message);
            break;
        }

        return hashCodeBuilder.toHashCode();
    }
}