com.redhat.insights.jars.ClasspathJarInfoSubreport Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of runtimes-java-api Show documentation

There is a newer version: 2.0.4

/* Copyright (C) Red Hat 2023 */
package com.redhat.insights.jars;

import static com.redhat.insights.InsightsErrorCode.ERROR_GENERATING_ARCHIVE_HASH;

import com.redhat.insights.InsightsException;
import com.redhat.insights.logging.InsightsLogger;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.nio.file.Paths;
import java.util.Optional;

/** Classpath entries sub-report. */
public class ClasspathJarInfoSubreport extends JarInfoSubreport {
  private static final String CLASSPATH_ENV = "java.class.path";
  private static final String USER_DIR = "user.dir";

  public ClasspathJarInfoSubreport(InsightsLogger logger) {
    super(logger);
  }

  @Override
  public void generateReport() {
    String cpRaw = System.getProperty(CLASSPATH_ENV);
    String[] entries = splitClassPathElements(cpRaw, File.pathSeparator);

    jarInfos.clear();
    if (entries.length == 0) {
      logger.warning("No classpath entries found");
    } else {
      addEntries(entries);
    }
  }

  private void addEntries(String[] entries) {
    JarAnalyzer analyzer = new JarAnalyzer(logger, true);
    String cwd = System.getProperty(USER_DIR);

    for (String entry : entries) {
      logger.debug(entry);
      try {
        if (!entry.startsWith(File.separator)) {
          entry = cwd + File.separatorChar + entry;
        }
        URL url = urlFor(entry);
        Optional oJar = analyzer.process(url);
        oJar.ifPresent(jarInfos::add);
      } catch (MalformedURLException | URISyntaxException e) {
        throw new InsightsException(ERROR_GENERATING_ARCHIVE_HASH, "JAR hashing error", e);
      }
    }
  }

  static String[] splitClassPathElements(String classpath, String separator) {
    return classpath.split(separator);
  }

  static URL urlFor(String entry) throws MalformedURLException {
    return Paths.get(entry).toUri().toURL();
  }
}