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/*
 * Copyright 2013-2015 the original author or authors.
 *
 * 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 org.glowroot.container.trace;

import java.util.List;

import javax.annotation.Nullable;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.google.common.base.MoreObjects;
import com.google.common.collect.ImmutableList;

import static org.glowroot.container.common.ObjectMappers.checkRequiredProperty;
import static org.glowroot.container.common.ObjectMappers.orEmpty;

public class ThrowableInfo {

    private final String display;
    private final ImmutableList stackTrace;
    private final int framesInCommonWithCaused;
    private final @Nullable ThrowableInfo cause;

    private ThrowableInfo(String display, List stackTrace, int framesInCommonWithCaused,
            @Nullable ThrowableInfo cause) {
        this.display = display;
        this.stackTrace = ImmutableList.copyOf(stackTrace);
        this.framesInCommonWithCaused = framesInCommonWithCaused;
        this.cause = cause;
    }

    public String getDisplay() {
        return display;
    }

    public ImmutableList getStackTrace() {
        return stackTrace;
    }

    public int getFramesInCommonWithCaused() {
        return framesInCommonWithCaused;
    }

    public @Nullable ThrowableInfo getCause() {
        return cause;
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
                .add("display", display)
                .add("stackTrace", stackTrace)
                .add("framesInCommonWithCaused", framesInCommonWithCaused)
                .add("cause", cause)
                .toString();
    }

    @JsonCreator
    static ThrowableInfo readValue(
            @JsonProperty("display") @Nullable String display,
            @JsonProperty("stackTrace") @Nullable List uncheckedStackTrace,
            @JsonProperty("framesInCommonWithCaused") @Nullable Integer framesInCommonWithCaused,
            @JsonProperty("cause") @Nullable ThrowableInfo cause)
                    throws JsonMappingException {
        List stackTrace = orEmpty(uncheckedStackTrace, "stackTrace");
        checkRequiredProperty(display, "display");
        checkRequiredProperty(framesInCommonWithCaused, "framesInCommonWithCaused");
        return new ThrowableInfo(display, stackTrace, framesInCommonWithCaused, cause);
    }
}