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/*******************************************************************************
* Copyright (c) 2013 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.orcs.db.internal.accessor;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.eclipse.osee.framework.core.enums.CoreArtifactTypes;
import org.eclipse.osee.framework.core.enums.CoreAttributeTypes;
import org.eclipse.osee.framework.core.enums.CoreBranches;
import org.eclipse.osee.framework.core.enums.TxChange;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.exception.OseeExceptions;
import org.eclipse.osee.framework.core.model.Branch;
import org.eclipse.osee.framework.core.model.OseeImportModelRequest;
import org.eclipse.osee.framework.core.model.OseeImportModelResponse;
import org.eclipse.osee.framework.core.model.cache.BranchCache;
import org.eclipse.osee.framework.core.services.IdentityService;
import org.eclipse.osee.framework.database.IOseeDatabaseService;
import org.eclipse.osee.framework.database.core.IOseeStatement;
import org.eclipse.osee.framework.jdk.core.type.PropertyStore;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.framework.resource.management.IResource;
import org.eclipse.osee.framework.resource.management.IResourceLocator;
import org.eclipse.osee.framework.resource.management.IResourceManager;
import org.eclipse.osee.framework.resource.management.StandardOptions;
import org.eclipse.osee.orcs.db.internal.accessor.ArtifactTypeDataAccessor.TypeLoader;
import org.eclipse.osee.orcs.db.internal.types.IOseeModelingService;
public class TypeLoaderImpl implements TypeLoader {
private static final String LOAD_OSEE_TYPE_DEF_URIS =
"select attr.uri from osee_txs txs1, osee_artifact art, osee_attribute attr, osee_txs txs2 where txs1.branch_id = ? and txs1.tx_current = ? and txs1.gamma_id = art.gamma_id and txs2.branch_id = ? and txs2.tx_current = ? and txs2.gamma_id = attr.gamma_id and art.art_type_id = ? and art.art_id = attr.art_id and attr.attr_type_id = ?";
private final boolean needsPriming;
private final IOseeModelingService modelingService;
private final IdentityService identityService;
private final IOseeDatabaseService dbService;
private final IResourceManager resourceManager;
private final BranchCache branchCache;
private volatile boolean loading = false;
public TypeLoaderImpl(IOseeModelingService modelingService, IdentityService identityService, IOseeDatabaseService dbService, IResourceManager resourceManager, BranchCache branchCache, boolean needsPriming) {
super();
this.modelingService = modelingService;
this.identityService = identityService;
this.dbService = dbService;
this.resourceManager = resourceManager;
this.branchCache = branchCache;
this.needsPriming = needsPriming;
}
@Override
public void load() throws OseeCoreException {
if (needsPriming && !loading) {
loading = true;
try {
loadTypes();
} finally {
loading = false;
}
}
}
private void loadTypes() throws OseeCoreException {
Collection<String> uriPaths = findOseeTypeData();
if (!uriPaths.isEmpty()) {
List<IResource> resources = getTypeData(uriPaths);
String modelData = createCombinedFile(resources);
String modelName = String.format("osee.types.%s.osee", Lib.getDateTimeString());
OseeImportModelRequest request = new OseeImportModelRequest(modelName, modelData, false, false, true);
OseeImportModelResponse response = new OseeImportModelResponse();
modelingService.importOseeTypes(true, request, response);
}
}
private Collection<String> findOseeTypeData() throws OseeCoreException {
Collection<String> paths = new ArrayList<String>();
Integer artifactTypeId = identityService.getLocalId(CoreArtifactTypes.OseeTypeDefinition);
Integer attributeTypeId = identityService.getLocalId(CoreAttributeTypes.UriGeneralStringData);
Branch commonBranch = branchCache.get(CoreBranches.COMMON);
if (commonBranch != null) {
IOseeStatement chStmt = null;
try {
chStmt = dbService.getStatement();
chStmt.runPreparedQuery(LOAD_OSEE_TYPE_DEF_URIS, commonBranch.getId(), TxChange.CURRENT.getValue(),
commonBranch.getId(), TxChange.CURRENT.getValue(), artifactTypeId, attributeTypeId);
while (chStmt.next()) {
String uri = chStmt.getString("uri");
paths.add(uri);
}
} finally {
Lib.close(chStmt);
}
}
return paths;
}
private List<IResource> getTypeData(Collection<String> paths) throws OseeCoreException {
List<IResource> toReturn = new ArrayList<IResource>();
PropertyStore options = new PropertyStore();
options.put(StandardOptions.DecompressOnAquire.name(), "true");
for (String path : paths) {
IResourceLocator locator = resourceManager.getResourceLocator(path);
IResource resource = resourceManager.acquire(locator, options);
toReturn.add(resource);
}
return toReturn;
}
private String createCombinedFile(List<IResource> resources) throws OseeCoreException {
StringWriter writer = new StringWriter();
for (IResource resource : resources) {
InputStream inputStream = null;
try {
inputStream = resource.getContent();
String oseeTypeFragment = Lib.inputStreamToString(inputStream);
oseeTypeFragment = oseeTypeFragment.replaceAll("import\\s+\"", "// import \"");
writer.write("\n");
writer.write("////////////// ");
writer.write(resource.getName());
writer.write("\n");
writer.write("\n");
writer.write(oseeTypeFragment);
} catch (IOException ex) {
OseeExceptions.wrapAndThrow(ex);
} finally {
Lib.close(inputStream);
}
}
return writer.toString();
}
}
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