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BuildFileProbe.java
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134 lines (110 loc) · 3.76 KB
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package act.app;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* 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.
* #L%
*/
import act.Act;
import act.plugin.Plugin;
import org.osgl.$;
import org.osgl.exception.NotAppliedException;
import org.osgl.util.IO;
import java.io.File;
import java.util.List;
/**
* Common implementation of {@link ProjectLayoutProbe}
* by inspecting a certain application build file, e.g. pom.xml for maven
* based application
*/
public class BuildFileProbe extends ProjectLayoutProbe {
public interface BuildFileNameProvider {
String buildFileName();
}
public static abstract class FileParser
extends $.F1<File, ProjectLayout>
implements BuildFileNameProvider, Plugin {
@Override
public ProjectLayout apply(File file) throws NotAppliedException, $.Break {
return parse(file);
}
@Override
public void register() {
Act.mode().appScanner().register(new BuildFileProbe(this));
}
protected abstract ProjectLayout parse(File file);
}
public static abstract class StringParser
extends $.F1<String, ProjectLayout>
implements BuildFileNameProvider, Plugin {
@Override
public ProjectLayout apply(String s) throws NotAppliedException, $.Break {
return parse(s);
}
@Override
public void register() {
Act.mode().appScanner().register(new BuildFileProbe(this));
}
protected abstract ProjectLayout parse(String fileContent);
}
public static abstract class LinesParser
extends $.F1<List<String>, ProjectLayout>
implements BuildFileNameProvider, Plugin {
@Override
public ProjectLayout apply(List<String> lines) throws NotAppliedException, $.Break {
return parse(lines);
}
@Override
public void register() {
Act.mode().appScanner().register(new BuildFileProbe(this));
}
protected abstract ProjectLayout parse(List<String> lines);
}
private String buildFileName;
private FileParser fileParser = null;
private StringParser stringParser = null;
private LinesParser linesParser = null;
public BuildFileProbe(FileParser fp) {
buildFileName = fp.buildFileName();
fileParser = fp;
}
public BuildFileProbe(StringParser sp) {
buildFileName = sp.buildFileName();
stringParser = sp;
}
public BuildFileProbe(LinesParser lp) {
buildFileName = lp.buildFileName();
linesParser = lp;
}
public String buildFileName() {
return buildFileName;
}
@Override
public ProjectLayout probe(File appBase) {
File buildFile = new File(appBase, buildFileName);
if (buildFile.exists() && buildFile.canRead()) {
if (null != fileParser) {
return fileParser.parse(buildFile);
} else if (null != stringParser) {
return stringParser.parse(IO.readContentAsString(buildFile));
} else if (null != linesParser) {
return linesParser.parse(IO.readLines(buildFile));
}
assert false;
}
return null;
}
}