Examples with FernflowerDecompiler org.jboss.windup.decompiler.fernflower.FernflowerDecompiler used on opensource projects

Example 1 with FernflowerDecompiler

use of org.jboss.windup.decompiler.fernflower.FernflowerDecompiler in project meghanada-server by mopemope.

the class LocationSearcher method searchLocationFromDecompileFile.

private Location searchLocationFromDecompileFile(SearchContext context, String searchFQCN, File classFile, String tempDir) throws IOException {
    final FernflowerDecompiler decompiler = new FernflowerDecompiler();
    decompiler.getLogger().setLevel(Level.OFF);
    final File output = new File(tempDir, TEMP_DECOMPILE_DIR);
    if (!output.exists() && !output.mkdirs()) {
        log.warn("{} mkdirs fail", output);
    }
    try {
        final DecompilationResult decompilationResult = decompiler.decompileArchive(classFile.toPath(), output.toPath(), zipEntry -> {
            final String name = zipEntry.getName();
            final String base = ClassNameUtils.replace(searchFQCN, ".", "/");
            final String search = base + FileUtils.CLASS_EXT;
            if (name.equals(search)) {
                return Filter.Result.ACCEPT;
            }
            final String inner = base + '$';
            if (name.startsWith(inner)) {
                return Filter.Result.ACCEPT;
            }
            return Filter.Result.REJECT;
        }, new DefaultDecompileFilter());
        final String fqcn = ClassNameUtils.getParentClass(context.searchFQCN);
        if (this.decompileFiles.containsKey(fqcn)) {
            final List<String> files = this.decompileFiles.get(fqcn);
            for (final String decompileFile : files) {
                final File file = new File(decompileFile);
                final Location location = searchLocationFromFile(context, fqcn, file);
                if (location != null) {
                    return location;
                }
            }
        } else {
            final Map<String, String> decompiledFiles = decompilationResult.getDecompiledFiles();
            final List<String> tempList = new ArrayList<>(4);
            for (final String decompileFile : decompiledFiles.values()) {
                final File decompiled = new File(decompileFile);
                final File temp = File.createTempFile(TEMP_FILE_PREFIX + "-decompile-", FileUtils.JAVA_EXT);
                LocationSearcher.copyAndFilter(decompiled, temp);
                tempList.add(temp.getCanonicalPath());
                decompiled.deleteOnExit();
                if (!decompiled.delete()) {
                    log.warn("{} delete fail", decompiled);
                }
                if (!temp.setReadOnly()) {
                    log.warn("{} setReadOnly fail", temp);
                }
                temp.deleteOnExit();
                final Location location = searchLocationFromFile(context, fqcn, temp);
                if (location != null) {
                    this.decompileFiles.put(fqcn, tempList);
                    return location;
                }
            }
            this.decompileFiles.put(fqcn, tempList);
        }
        return null;
    } finally {
        org.apache.commons.io.FileUtils.deleteDirectory(output);
    }
}