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package org.glavo.javah;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.Writer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Objects;
import java.util.function.Predicate;
import java.util.stream.Stream;
public class JavahTask {
private PrintWriter errorHandle = new PrintWriter(System.err);
private boolean outputToSignalFile = false;
private Path outputPath = null;
private final List<SearchPath> searchPaths = new ArrayList<>();
private final List<String> classList = new ArrayList<>();
public void run() throws IOException {
if (outputPath == null) {
errorHandle.println("output path is not set");
return;
}
if (outputToSignalFile) {
try (PrintWriter writer = new PrintWriter(Files.newBufferedWriter(outputPath))) {
writer.write(JNIGenerator.FILE_HEADER);
classList.stream()
.map(this::search)
.filter(Objects::nonNull)
.filter(Files::isReadable)
.map(p -> new JNIGenerator(writer, p))
.forEachOrdered(JNIGenerator::generate);
writer.write(JNIGenerator.FILE_END);
}
} else {
for (String c : classList) {
Path p = search(c);
if (p == null) {
continue;
}
try (PrintWriter output = new PrintWriter(Files.newBufferedWriter(
outputPath.resolve(Utils.encode(c).replace('.', '_') + ".h")))) {
output.write(JNIGenerator.FILE_HEADER);
new JNIGenerator(output, p).generate();
output.write(JNIGenerator.FILE_END);
}
}
}
}
private Path search(String className) {
for (SearchPath searchPath : searchPaths) {
Path c = searchPath.searchClass(className);
if (c != null) {
return c;
}
}
errorHandle.println("class" + className + " not found");
return null;
}
//
// Getters and Setters
//
public void addSearchPath(SearchPath searchPath) {
Objects.requireNonNull(searchPath);
searchPaths.add(searchPath);
}
public void addModulePath(Path modulePath) {
Objects.requireNonNull(modulePath);
searchPaths.add(new ModulePath(modulePath));
}
public void addModulePaths(String modulePaths) {
Objects.requireNonNull(modulePaths);
Arrays.stream(modulePaths.split(File.pathSeparator))
.filter(s -> !"".equals(s))
.map(Paths::get)
.filter(Files::isDirectory)
.forEachOrdered(this::addModulePath);
}
public void addClasspath(Path classPath) {
Objects.requireNonNull(classPath);
searchPaths.add(new ClassPath(classPath));
}
public void addClasspaths(String cps) {
Arrays.stream(cps.split(File.pathSeparator))
.filter(s -> !"".equals(s))
.flatMap(s -> {
if (s.endsWith(File.separatorChar + "*")) {
try {
return Files.list(Paths.get(s.substring(0, s.length() - 2)))
.filter(p -> p.getFileName().toString().toLowerCase().endsWith(".jar"));
} catch (IOException e) {
return Stream.empty();
}
}
return Stream.of(Paths.get(s));
})
.filter(Files::exists)
.map(ClassPath::new)
.forEachOrdered(searchPaths::add);
}
public void addRuntimeClasspath() {
searchPaths.add(RuntimeClassPath.INSTANCE);
}
public List<SearchPath> searchPaths() {
return searchPaths;
}
public PrintWriter getErrorHandle() {
return errorHandle;
}
public void setErrorHandle(Writer handle) {
if (handle == null || handle instanceof PrintWriter) {
errorHandle = (PrintWriter) handle;
} else {
errorHandle = new PrintWriter(handle);
}
}
public boolean isOutputToSignalFile() {
return outputToSignalFile;
}
public JavahTask setOutputToSignalFile(boolean outputToSignalFile) {
this.outputToSignalFile = outputToSignalFile;
return this;
}
public Path getOutputPath() {
return outputPath;
}
public JavahTask setOutputPath(Path outputPath) {
this.outputPath = outputPath;
return this;
}
public void addClass(String name) {
classList.add(name);
}
public List<String> getClassList() {
return classList;
}
}
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