/*
A Java-based HTTP stub server
Copyright (C) 2012 Alexander Zagniotov, Isa Goksu and Eric Mrak
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package by.stub.database;
import by.stub.client.StubbyResponse;
import by.stub.http.StubbyHttpTransport;
import by.stub.utils.ObjectUtils;
import by.stub.utils.ReflectionUtils;
import by.stub.yaml.YamlParser;
import by.stub.yaml.YamlProperties;
import by.stub.yaml.stubs.NotFoundStubResponse;
import by.stub.yaml.stubs.RedirectStubResponse;
import by.stub.yaml.stubs.StubHttpLifecycle;
import by.stub.yaml.stubs.StubRequest;
import by.stub.yaml.stubs.StubResponse;
import by.stub.yaml.stubs.UnauthorizedStubResponse;
import org.eclipse.jetty.http.HttpMethods;
import java.io.File;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class StubbedDataManager {
private final File dataYaml;
private final List<StubHttpLifecycle> stubHttpLifecycles;
private StubbyHttpTransport stubbyHttpTransport;
public StubbedDataManager(final File dataYaml, final List<StubHttpLifecycle> stubHttpLifecycles) {
this.dataYaml = dataYaml;
this.stubHttpLifecycles = Collections.synchronizedList(stubHttpLifecycles);
this.stubbyHttpTransport = new StubbyHttpTransport();
}
public StubResponse findStubResponseFor(final StubRequest assertingRequest) {
final StubHttpLifecycle assertingLifecycle = new StubHttpLifecycle();
assertingLifecycle.setRequest(assertingRequest);
assertingLifecycle.setResponse(StubResponse.newStubResponse());
return identifyStubResponseType(assertingLifecycle);
}
private StubResponse identifyStubResponseType(final StubHttpLifecycle assertingLifecycle) {
final StubHttpLifecycle matchedLifecycle = getMatchedStubHttpLifecycle(assertingLifecycle);
if (ObjectUtils.isNull(matchedLifecycle)) {
return new NotFoundStubResponse();
}
final StubResponse stubResponse = matchedLifecycle.getResponse();
if (matchedLifecycle.isRestricted() && matchedLifecycle.hasNotAuthorized(assertingLifecycle)) {
return new UnauthorizedStubResponse();
}
if (stubResponse.hasHeaderLocation()) {
return RedirectStubResponse.newRedirectStubResponse(stubResponse);
}
if (stubResponse.isRecordingRequired()) {
try {
final StubbyResponse stubbyResponse = stubbyHttpTransport.getResponse(HttpMethods.GET, stubResponse.getBody());
ReflectionUtils.injectObjectFields(stubResponse, YamlProperties.BODY, stubbyResponse.getContent());
} catch (Exception e) {
}
}
return stubResponse;
}
private synchronized StubHttpLifecycle getMatchedStubHttpLifecycle(final StubHttpLifecycle assertingLifecycle) {
final int listIndex = stubHttpLifecycles.indexOf(assertingLifecycle);
if (listIndex < 0) {
return StubHttpLifecycle.NULL;
}
final StubHttpLifecycle foundStubHttpLifecycle = stubHttpLifecycles.get(listIndex);
foundStubHttpLifecycle.setResourceId(listIndex);
return foundStubHttpLifecycle;
}
public synchronized StubHttpLifecycle getMatchedStubHttpLifecycle(final int index) {
if (!isStubHttpLifecycleExistsByIndex(index)) {
return StubHttpLifecycle.NULL;
}
return stubHttpLifecycles.get(index);
}
public synchronized boolean resetStubHttpLifecycles(final List<StubHttpLifecycle> stubHttpLifecycles) {
this.stubHttpLifecycles.clear();
final boolean added = this.stubHttpLifecycles.addAll(stubHttpLifecycles);
if (added) {
updateResourceIDHeaders();
}
return added;
}
public synchronized void refreshStubbedData(final YamlParser yamlParser) throws Exception {
final List<StubHttpLifecycle> stubHttpLifecycles = yamlParser.parse(this.dataYaml.getParent(), dataYaml);
resetStubHttpLifecycles(stubHttpLifecycles);
}
public synchronized void refreshStubbedData(final YamlParser yamlParser, final String post) throws Exception {
final List<StubHttpLifecycle> stubHttpLifecycles = yamlParser.parse(this.dataYaml.getParent(), post);
resetStubHttpLifecycles(stubHttpLifecycles);
}
public synchronized String refreshStubbedData(final YamlParser yamlParser, final String put, final int stubIndexToUpdate) throws Exception {
final List<StubHttpLifecycle> stubHttpLifecycles = yamlParser.parse(this.dataYaml.getParent(), put);
final StubHttpLifecycle newStubHttpLifecycle = stubHttpLifecycles.get(0);
updateStubHttpLifecycleByIndex(stubIndexToUpdate, newStubHttpLifecycle);
return newStubHttpLifecycle.getRequest().getUrl();
}
// Just a shallow copy that protects collection from modification, the points themselves are not copied
public List<StubHttpLifecycle> getStubHttpLifecycles() {
return new LinkedList<StubHttpLifecycle>(stubHttpLifecycles);
}
public synchronized String getOnlyStubRequestUrl() {
return stubHttpLifecycles.get(0).getRequest().getUrl();
}
public File getDataYaml() {
return dataYaml;
}
public synchronized Map<File, Long> getExternalFiles() {
final Set<String> escrow = new HashSet<String>();
final Map<File, Long> externalFiles = new HashMap<File, Long>();
for (StubHttpLifecycle cycle : stubHttpLifecycles) {
storeExternalFileInCache(escrow, externalFiles, cycle.getRequest().getRawFile());
storeExternalFileInCache(escrow, externalFiles, cycle.getResponse().getRawFile());
}
return externalFiles;
}
private void storeExternalFileInCache(final Set<String> escrow, final Map<File, Long> externalFiles, final File file) {
if (ObjectUtils.isNotNull(file) && !escrow.contains(file.getName())) {
escrow.add(file.getName());
externalFiles.put(file, file.lastModified());
}
}
public String getYamlCanonicalPath() {
try {
return this.dataYaml.getCanonicalPath();
} catch (IOException e) {
return this.dataYaml.getAbsolutePath();
}
}
public synchronized String getMarshalledYaml() {
final StringBuilder builder = new StringBuilder();
for (final StubHttpLifecycle cycle : stubHttpLifecycles) {
builder.append(cycle.getHttpLifeCycleAsYaml()).append("\n\n");
}
return builder.toString();
}
public synchronized String getMarshalledYamlByIndex(final int httpLifecycleIndex) {
return stubHttpLifecycles.get(httpLifecycleIndex).getHttpLifeCycleAsYaml();
}
public synchronized void updateStubHttpLifecycleByIndex(final int httpLifecycleIndex, final StubHttpLifecycle newStubHttpLifecycle) {
deleteStubHttpLifecycleByIndex(httpLifecycleIndex);
stubHttpLifecycles.add(httpLifecycleIndex, newStubHttpLifecycle);
updateResourceIDHeaders();
}
public synchronized boolean isStubHttpLifecycleExistsByIndex(final int httpLifecycleIndex) {
return stubHttpLifecycles.size() - 1 >= httpLifecycleIndex;
}
public synchronized StubHttpLifecycle deleteStubHttpLifecycleByIndex(final int httpLifecycleIndex) {
final StubHttpLifecycle removedLifecycle = stubHttpLifecycles.remove(httpLifecycleIndex);
updateResourceIDHeaders();
return removedLifecycle;
}
private void updateResourceIDHeaders() {
for (int index = 0; index < stubHttpLifecycles.size(); index++) {
stubHttpLifecycles.get(index).setResourceId(index);
}
}
}