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Diffstat (limited to 'src/main/java/moe/nea/modernjava/launch/relaunch/JavaScanner.java')
-rw-r--r--src/main/java/moe/nea/modernjava/launch/relaunch/JavaScanner.java248
1 files changed, 125 insertions, 123 deletions
diff --git a/src/main/java/moe/nea/modernjava/launch/relaunch/JavaScanner.java b/src/main/java/moe/nea/modernjava/launch/relaunch/JavaScanner.java
index 0003097..e50e5d4 100644
--- a/src/main/java/moe/nea/modernjava/launch/relaunch/JavaScanner.java
+++ b/src/main/java/moe/nea/modernjava/launch/relaunch/JavaScanner.java
@@ -11,127 +11,129 @@ import java.util.List;
public class JavaScanner {
- public static final String JAVA_BINARY_PATH = "bin/java" + (SystemUtils.IS_OS_WINDOWS ? ".exe" : "");
- public static final String JAVA_COMPILER_PATH = "bin/javac" + (SystemUtils.IS_OS_WINDOWS ? ".exe" : "");
-
- public boolean isJavaHome(File potential) {
- if (new File(potential, JAVA_BINARY_PATH).exists()) {
- return true;
- }
- return false;
- }
-
- private List<LocalJavaVersion> versionList = new ArrayList<>();
-
- public void scanDirectory(File file) {
- scanDirectory(file, 1);
- }
-
- public void scanDirectory(File file, int depthLimit) {
- if (depthLimit < 0) return;
- if (isJavaHome(file)) {
- versionList.add(new LocalJavaVersion(file));
- } else {
- for (File listFile : file.listFiles()) {
- if (listFile.isDirectory()) {
- scanDirectory(listFile, depthLimit - 1);
- }
- }
- }
- }
-
- public void prettyPrint() {
- String s = "Fun fact these are the found Java Runtime Environments:\n";
- for (LocalJavaVersion localJavaVersion : versionList) {
- s += localJavaVersion.prettyPrint();
- }
- System.out.println(s);
- }
-
- public void scanDefaultPaths() {
- File home = new File(System.getProperty("user.home"));
- scanDirectory(new File(home, ".sdkman/candidates/java"));
- scanDirectory(new File(home, ".jdks"));
- scanDirectory(new File("/usr"), 0);
- String[] paths = System.getProperty(PropertyNames.JAVA_SCAN_PATH, "").split(File.pathSeparator);
- for (String path : paths) {
- if (!path.isEmpty()) {
- scanDirectory(new File(path).getParentFile(), 3);
- }
- }
- }
-
- public LocalJavaVersion findCandidate() {
- LocalJavaVersion bestFit = null;
- for (LocalJavaVersion localJavaVersion : versionList) {
- if (localJavaVersion.isJdk() && localJavaVersion.getMajorVersion() == 16) {
- bestFit = localJavaVersion;
- }
- }
- return bestFit;
- }
-
- public static class LocalJavaVersion {
- private final File javaHome;
- private String versionString;
-
- public LocalJavaVersion(File javaHome) {
- this.javaHome = javaHome;
- }
-
- public File getJavaHome() {
- return javaHome;
- }
-
- public File getJavaBinary() {
- return new File(javaHome, JAVA_BINARY_PATH);
- }
-
- public boolean isJdk() {
- return new File(javaHome, JAVA_COMPILER_PATH).exists();
- }
-
- public String getVersionString() {
- if (versionString == null) {
- ProcessBuilder processBuilder = new ProcessBuilder();
- processBuilder.command(getJavaBinary().getAbsolutePath(), "-version");
- processBuilder.redirectInput(ProcessBuilder.Redirect.PIPE);
- processBuilder.redirectOutput(ProcessBuilder.Redirect.PIPE);
- processBuilder.redirectError(ProcessBuilder.Redirect.PIPE);
- try {
- Process process = processBuilder.start();
- process.waitFor();
- versionString = IOUtils.toString(process.getInputStream()) + IOUtils.toString(process.getErrorStream());
- } catch (Exception e) {
- e.printStackTrace();
- versionString = "<invalid>";
- }
- }
- return versionString;
- }
-
- public String prettyPrint() {
- return javaHome.getAbsolutePath() + ":\n"
- + "\tJava Binary: " + getJavaBinary().getAbsolutePath() + "\n"
- + "\tMajor Version: " + getMajorVersion() + "\n"
- + "\tFull Version: " + getVersion() + "\n"
- + "\tIs Jdk: " + isJdk() + "\n"
- ;
- }
-
- public String getVersion() {
- String v = getVersionString();
- String[] s = v.split("\"");
- if (s.length < 2) return null;
- return s[1];
- }
-
- public int getMajorVersion() {
- try {
- return Integer.parseInt(getVersion().split("\\.")[0]);
- } catch (Exception e) {
- return -1;
- }
- }
- }
+ public static final String JAVA_BINARY_PATH = "bin/java" + (SystemUtils.IS_OS_WINDOWS ? ".exe" : "");
+ public static final String JAVA_COMPILER_PATH = "bin/javac" + (SystemUtils.IS_OS_WINDOWS ? ".exe" : "");
+
+ public boolean isJavaHome(File potential) {
+ if (new File(potential, JAVA_BINARY_PATH).exists()) {
+ return true;
+ }
+ return false;
+ }
+
+ private List<LocalJavaVersion> versionList = new ArrayList<>();
+
+ public void scanDirectory(File file) {
+ scanDirectory(file, 1);
+ }
+
+ public void scanDirectory(File file, int depthLimit) {
+ if (depthLimit < 0) return;
+ if (isJavaHome(file)) {
+ versionList.add(new LocalJavaVersion(file));
+ } else {
+ File[] files = file.listFiles();
+ if (files == null) return;
+ for (File listFile : files) {
+ if (listFile.isDirectory()) {
+ scanDirectory(listFile, depthLimit - 1);
+ }
+ }
+ }
+ }
+
+ public void prettyPrint() {
+ String s = "Fun fact these are the found Java Runtime Environments:\n";
+ for (LocalJavaVersion localJavaVersion : versionList) {
+ s += localJavaVersion.prettyPrint();
+ }
+ System.out.println(s);
+ }
+
+ public void scanDefaultPaths() {
+ File home = new File(System.getProperty("user.home"));
+ scanDirectory(new File(home, ".sdkman/candidates/java"));
+ scanDirectory(new File(home, ".jdks"));
+ scanDirectory(new File("/usr"), 0);
+ String[] paths = System.getProperty(PropertyNames.JAVA_SCAN_PATH, "").split(File.pathSeparator);
+ for (String path : paths) {
+ if (!path.isEmpty()) {
+ scanDirectory(new File(path).getParentFile(), 3);
+ }
+ }
+ }
+
+ public LocalJavaVersion findCandidate() {
+ LocalJavaVersion bestFit = null;
+ for (LocalJavaVersion localJavaVersion : versionList) {
+ if (localJavaVersion.isJdk() && localJavaVersion.getMajorVersion() == 16) {
+ bestFit = localJavaVersion;
+ }
+ }
+ return bestFit;
+ }
+
+ public static class LocalJavaVersion {
+ private final File javaHome;
+ private String versionString;
+
+ public LocalJavaVersion(File javaHome) {
+ this.javaHome = javaHome;
+ }
+
+ public File getJavaHome() {
+ return javaHome;
+ }
+
+ public File getJavaBinary() {
+ return new File(javaHome, JAVA_BINARY_PATH);
+ }
+
+ public boolean isJdk() {
+ return new File(javaHome, JAVA_COMPILER_PATH).exists();
+ }
+
+ public String getVersionString() {
+ if (versionString == null) {
+ ProcessBuilder processBuilder = new ProcessBuilder();
+ processBuilder.command(getJavaBinary().getAbsolutePath(), "-version");
+ processBuilder.redirectInput(ProcessBuilder.Redirect.PIPE);
+ processBuilder.redirectOutput(ProcessBuilder.Redirect.PIPE);
+ processBuilder.redirectError(ProcessBuilder.Redirect.PIPE);
+ try {
+ Process process = processBuilder.start();
+ process.waitFor();
+ versionString = IOUtils.toString(process.getInputStream()) + IOUtils.toString(process.getErrorStream());
+ } catch (Exception e) {
+ e.printStackTrace();
+ versionString = "<invalid>";
+ }
+ }
+ return versionString;
+ }
+
+ public String prettyPrint() {
+ return javaHome.getAbsolutePath() + ":\n"
+ + "\tJava Binary: " + getJavaBinary().getAbsolutePath() + "\n"
+ + "\tMajor Version: " + getMajorVersion() + "\n"
+ + "\tFull Version: " + getVersion() + "\n"
+ + "\tIs Jdk: " + isJdk() + "\n"
+ ;
+ }
+
+ public String getVersion() {
+ String v = getVersionString();
+ String[] s = v.split("\"");
+ if (s.length < 2) return null;
+ return s[1];
+ }
+
+ public int getMajorVersion() {
+ try {
+ return Integer.parseInt(getVersion().split("\\.")[0]);
+ } catch (Exception e) {
+ return -1;
+ }
+ }
+ }
}
generated by cgit (git 2.46.0) at 2024-11-21 20:17:25 +0000