com.couchbase.cbadmin.client.RestApiException.java Source code

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Here is the source code for com.couchbase.cbadmin.client.RestApiException.java

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/*
 * Copyright (C) 2013 Couchbase, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALING
 * IN THE SOFTWARE.
 */

package com.couchbase.cbadmin.client;

import com.google.gson.JsonElement;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.ProtocolVersion;
import org.apache.http.StatusLine;
import org.apache.http.client.methods.HttpRequestBase;
import org.apache.http.message.BasicStatusLine;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
 * An exception thrown by the REST API
 * @author mnunberg
 */
public class RestApiException extends Exception {
    private final StatusLine status;
    private JsonElement json = null;
    private HttpRequestBase request = null;

    static private StatusLine defaultStatusLine(String s, int code) {
        if (s == null) {
            s = "Client Error";
        }

        return new BasicStatusLine(new ProtocolVersion("HTTP", 1, 0), code, s);
    }

    static private StatusLine defaultStatusLine() {
        return defaultStatusLine(null, 408);
    }

    // Constructors
    public RestApiException() {
        super();
        status = defaultStatusLine();
    }

    public RestApiException(String msg) {
        super(msg);
        status = defaultStatusLine(msg, 408);
    }

    public RestApiException(JsonElement js, StatusLine st) {
        status = st;
        json = js;
    }

    public RestApiException(JsonElement js, StatusLine st, HttpRequestBase req) {
        status = st;
        json = js;
        request = req;
    }

    public RestApiException(String s, JsonElement badJson) {
        super(s);
        status = defaultStatusLine();
        json = badJson;
    }

    public RestApiException(Throwable e) {
        super(e);
        status = defaultStatusLine();
    }

    public JsonElement getJson() {
        return json;
    }

    public StatusLine getStatusLine() {
        return status;
    }

    @Override
    public String getMessage() {
        List<String> msgList = new ArrayList<String>();
        String existing = super.getMessage();

        if (existing != null) {
            msgList.add(existing);
        }

        if (status.getStatusCode() != 408) {
            msgList.add(String.format("<Status=%d, Reason=%s>", status.getStatusCode(), status.getReasonPhrase()));
        }

        if (json != null) {
            msgList.add("<JSON=" + json + ">");
        }

        if (request != null) {
            msgList.add("Request=" + request + ">");

            if (request instanceof HttpEntityEnclosingRequest) {
                HttpEntityEnclosingRequest eReq = (HttpEntityEnclosingRequest) request;
                HttpEntity entity = eReq.getEntity();
                try {
                    if (entity != null && entity.getContent() != null) {
                        InputStream strm = entity.getContent();
                        strm.reset();
                        msgList.add("<Request Body=" + IOUtils.toString(strm) + ">");
                    }
                } catch (IOException ex) {
                    // In exception. What do we do here?
                    msgList.add("<IOException for reading request>");
                } catch (IllegalStateException ex) {
                    msgList.add("<IllegalStateException while reading request>");
                }
            }
        }

        return StringUtils.join(msgList, ",");
    }
}