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/*******************************************************************************
* Copyright (c) 2004, 2007 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.framework.core.dsl.integration.util;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Stack;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.eclipse.osee.framework.core.data.IOseeBranch;
import org.eclipse.osee.framework.core.model.IBasicArtifact;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.type.OseeStateException;
import org.eclipse.osee.framework.jdk.core.util.Conditions;
import org.eclipse.osee.framework.jdk.core.util.Strings;
/**
* @author Roberto E. Escobar
*/
public class OseeDslSegmentParser {
public String getStartTag(IBasicArtifact<?> artifact) throws OseeCoreException {
return getSegmentTag("start", artifact);
}
public String getEndTag(IBasicArtifact<?> artifact) throws OseeCoreException {
return getSegmentTag("end", artifact);
}
private static String getSegmentTag(String tagPrefix, IBasicArtifact<?> artifact) throws OseeCoreException {
Conditions.checkNotNull(artifact, "artifact");
IOseeBranch branch = artifact.getBranch();
Conditions.checkNotNull(branch, "branch");
return String.format("//@%s_artifact branch/%s/artifact/%s/ (%s:%s)", tagPrefix, branch.getGuid(),
artifact.getGuid(), branch.getName(), artifact.getName());
}
public Collection<OseeDslSegment> getSegments(String source) throws OseeCoreException {
return getSegments(getTagLocations(source));
}
public Collection<OseeDslSegment> getSegments(Collection<TagLocation> tagLocations) throws OseeCoreException {
Conditions.checkNotNull(tagLocations, "tagLocations");
Collection<OseeDslSegment> segments = new ArrayList<OseeDslSegment>();
Stack<TagLocation> segmentStack = new Stack<TagLocation>();
for (TagLocation segment : tagLocations) {
if (segment.isStartTag()) {
segmentStack.push(segment);
} else {
if (matches(segmentStack.peek(), segment)) {
TagLocation startSeg = segmentStack.pop();
processData(segments, startSeg, segment);
}
}
}
if (!segmentStack.isEmpty()) {
throw new OseeStateException("Found unmatched segments");
}
return segments;
}
private void processData(Collection<OseeDslSegment> segments, TagLocation startSeg, TagLocation stopSeg) {
String branchGuid = startSeg.getBranchGuid();
String artifactGuid = startSeg.getArtifactGuid();
int startAt = startSeg.end();
int endAt = stopSeg.start();
segments.add(new OseeDslSegment(branchGuid, artifactGuid, startAt, endAt));
}
private boolean matches(TagLocation seg1, TagLocation seg2) {
return seg1.getBranchGuid().equals(seg2.getBranchGuid()) && seg1.getArtifactGuid().equals(seg2.getArtifactGuid());
}
public Collection<TagLocation> getTagLocations(String source) throws OseeCoreException {
Conditions.checkNotNull(source, "artifact source data");
Collection<TagLocation> segments = new ArrayList<TagLocation>();
Pattern pattern = Pattern.compile("\\s?//@(.*?)_artifact\\s+branch/(.*?)/artifact/(.*?)/\\s+\\(.*?\\)");
Matcher matcher = pattern.matcher(source);
String branchGuid = null;
String artifactGuid = null;
String tag = null;
int tagStart = -1;
int tagEnd = -1;
while (matcher.find()) {
tagStart = matcher.start();
tagEnd = matcher.end();
tag = matcher.group(1);
branchGuid = matcher.group(2);
artifactGuid = matcher.group(3);
if (Strings.isValid(tag) && Strings.isValid(branchGuid) && Strings.isValid(artifactGuid)) {
boolean isStartTag = tag.equalsIgnoreCase("start");
segments.add(new TagLocation(isStartTag, branchGuid, artifactGuid, tagStart, tagEnd));
}
}
return segments;
}
public static final class TagLocation {
private final boolean isStartTag;
private final String branchGuid;
private final String artifactGuid;
private final int start;
private final int end;
public TagLocation(boolean isStartTag, String branchGuid, String artifactGuid, int start, int end) {
super();
this.isStartTag = isStartTag;
this.branchGuid = branchGuid;
this.artifactGuid = artifactGuid;
this.start = start;
this.end = end;
}
public boolean isStartTag() {
return isStartTag;
}
public String getBranchGuid() {
return branchGuid;
}
public String getArtifactGuid() {
return artifactGuid;
}
public int start() {
return start;
}
public int end() {
return end;
}
@Override
public String toString() {
return "OseeDslSegment [isStartTag=" + isStartTag + ", branchGuid=" + branchGuid + ", artifactGuid=" + artifactGuid + ", start=" + start + ", end=" + end + "]";
}
}
public static final class OseeDslSegment {
private final String branchGuid;
private final String artifactGuid;
private final int start;
private final int end;
public OseeDslSegment(String branchGuid, String artifactGuid, int start, int end) {
super();
this.branchGuid = branchGuid;
this.artifactGuid = artifactGuid;
this.start = start;
this.end = end;
}
public String getBranchGuid() {
return branchGuid;
}
public String getArtifactGuid() {
return artifactGuid;
}
public int start() {
return start;
}
public int end() {
return end;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + (artifactGuid == null ? 0 : artifactGuid.hashCode());
result = prime * result + (branchGuid == null ? 0 : branchGuid.hashCode());
result = prime * result + end;
result = prime * result + start;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
OseeDslSegment other = (OseeDslSegment) obj;
if (artifactGuid == null) {
if (other.artifactGuid != null) {
return false;
}
} else if (!artifactGuid.equals(other.artifactGuid)) {
return false;
}
if (branchGuid == null) {
if (other.branchGuid != null) {
return false;
}
} else if (!branchGuid.equals(other.branchGuid)) {
return false;
}
if (end != other.end) {
return false;
}
if (start != other.start) {
return false;
}
return true;
}
@Override
public String toString() {
return "OseeDslSegment [branchGuid=" + branchGuid + ", artifactGuid=" + artifactGuid + ", start=" + start + ", end=" + end + "]";
}
}
}
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