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// Copyright 2015 Google Inc. All rights reserved.
//
// 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 com.google.devtools.dash;
import com.google.appengine.api.datastore.Blob;
import com.google.appengine.api.datastore.Entity;
import com.google.common.io.ByteStreams;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
/**
* Parent class for dash-related servlets.
*/
class DashRequest {
public static final String KEY_KIND = "build";
public static final String BUILD_ID = "build_id";
public static final String PAGE_NAME = "page_name";
public static final String BUILD_DATA = "build_data";
// URI is something like "/result/d2c64e09-df4e-461d-869e-33f014488655".
private static final Pattern URI_REGEX = Pattern.compile(
"/(\\w+)/([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12})");
private final String pageName;
private final String buildId;
private final Blob blob;
DashRequest(HttpServletRequest request) throws DashRequestException {
Matcher matcher = URI_REGEX.matcher(request.getRequestURI());
if (matcher.find()) {
pageName = matcher.group(1);
buildId = matcher.group(2);
} else {
throw new DashRequestException("Invalid URI pattern: " + request.getRequestURI());
}
try {
// Requests are capped at 32MB (see
// https://cloud.google.com/appengine/docs/quotas?csw=1#Requests).
blob = new Blob(ByteStreams.toByteArray(request.getInputStream()));
} catch (IOException e) {
throw new DashRequestException("Could not read request body: " + e.getMessage());
}
}
public String getBuildId() {
return buildId;
}
public Entity getEntity() {
Entity entity = new Entity(DashRequest.KEY_KIND);
entity.setProperty(BUILD_ID, buildId);
entity.setProperty(PAGE_NAME, pageName);
entity.setProperty(BUILD_DATA, blob);
return entity;
}
static class DashRequestException extends Exception {
public DashRequestException(String message) {
super(message);
}
}
}
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