+/*
+ * JavaInspect - Utility to visualize java software
+ * Copyright (C) 2013-2017, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 3 of the GNU Lesser General Public License
+ * or later as published by the Free Software Foundation.
+ */
+
package eu.svjatoslav.inspector.java.methods;
-import java.io.File;
+import eu.svjatoslav.commons.string.tokenizer.InvalidSyntaxException;
+import eu.svjatoslav.commons.string.tokenizer.Tokenizer;
+import eu.svjatoslav.commons.string.tokenizer.TokenizerMatch;
+
+import java.io.*;
+import java.util.ArrayList;
+import java.util.List;
+
+import static eu.svjatoslav.commons.string.tokenizer.Terminator.TerminationStrategy.DROP;
+import static eu.svjatoslav.commons.string.tokenizer.Terminator.TerminationStrategy.PRESERVE;
public class JavaFile {
- private final File file;
+ public static final String UTF_8 = "UTF-8";
+ private final List<Import> imports = new ArrayList<Import>();
+ private final File file;
+ public List<Clazz> classes = new ArrayList<Clazz>();
+ StringBuffer contents = new StringBuffer();
+ private String packageName;
+
+ public JavaFile(final File file) throws IOException, InvalidSyntaxException {
+ this.file = file;
+ parse();
+ }
+
+ public void parse() throws IOException, InvalidSyntaxException {
+ System.out.println("java file: " + file);
+
+ readFile();
+
+ final Tokenizer tokenizer = new Tokenizer(contents.toString());
+
+ // empty space
+ tokenizer.addTerminator(" ", DROP);
+ tokenizer.addTerminator("\t", DROP);
+ tokenizer.addTerminator("\n", DROP);
+
+ tokenizer.addTerminator(";", PRESERVE);
+ tokenizer.addTerminator("{", PRESERVE);
+ tokenizer.addTerminator("}", PRESERVE);
+ tokenizer.addTerminator("(", PRESERVE);
+ tokenizer.addTerminator(")", PRESERVE);
+ tokenizer.addTerminator("[", PRESERVE);
+ tokenizer.addTerminator("]", PRESERVE);
+ tokenizer.addTerminator("<", PRESERVE);
+ tokenizer.addTerminator(">", PRESERVE);
+ tokenizer.addTerminator(",", PRESERVE);
+ tokenizer.addTerminator("@", PRESERVE);
+
+ // comments
+ tokenizer.addTerminator("//", "\n", DROP);
+ tokenizer.addTerminator("/*", "*/", DROP);
+
+ final Modifiers modifiers = new Modifiers();
+
+ while (true) {
+ final TokenizerMatch match = tokenizer.getNextToken();
+ if (match == null)
+ break;
+
+ if (match.token.equals("package")) {
+ parsePackage(tokenizer);
+ continue;
+ }
+
+ if (match.token.equals("import")) {
+ parseImport(tokenizer);
+ continue;
+ }
+
+ final boolean wasModifier = modifiers.parseModifier(match.token);
+ if (wasModifier)
+ continue;
+
+ if ("class".equals(match.token)) {
+ parseClass(tokenizer);
+ continue;
+ }
+
+ if ("interface".equals(match.token)) {
+ parseInterface(tokenizer);
+ continue;
+ }
+
+ if ("@".equals(match.token)) {
+ new Annotation(tokenizer);
+ continue;
+ }
+
+ System.out.println(" " + modifiers.toString() + " "
+ + match.token);
+ modifiers.reset();
+ skipUntilSemicolon(tokenizer);
+ }
+
+ }
+
+ private void parseClass(final Tokenizer tokenizer)
+ throws InvalidSyntaxException {
+
+ final TokenizerMatch match = tokenizer.getNextToken();
+ final Clazz clazz = new Clazz(packageName, match.token, tokenizer,
+ false);
+ // System.out.println(clazz.toString());
+ classes.add(clazz);
+
+ }
+
+ private void parseImport(final Tokenizer tokenizer)
+ throws InvalidSyntaxException {
+
+ final Import imp = new Import();
+
+ final TokenizerMatch match = tokenizer.getNextToken();
+
+ if (match.token.equals("static")) {
+ imp.isStatic = true;
+ imp.path = tokenizer.getNextToken().token;
+ } else
+ imp.path = match.token;
+
+ imports.add(imp);
+
+ tokenizer.expectAndConsumeNextToken(";");
+ }
+
+ private void parseInterface(final Tokenizer tokenizer)
+ throws InvalidSyntaxException {
+
+ final TokenizerMatch match = tokenizer.getNextToken();
+ final Clazz clazz = new Clazz(packageName, match.token, tokenizer, true);
+ // System.out.println(clazz.toString());
+ classes.add(clazz);
+ }
+
+ private void parsePackage(final Tokenizer tokenizer)
+ throws InvalidSyntaxException {
+
+ final TokenizerMatch match = tokenizer.getNextToken();
+
+ packageName = match.token;
+
+ tokenizer.expectAndConsumeNextToken(";");
+ }
+
+ private void readFile() throws IOException {
+ InputStreamReader inputStream = new InputStreamReader(new FileInputStream(file), UTF_8);
+
+ final BufferedReader bufferedReader = new BufferedReader(inputStream);
+
+ while (true) {
+ final String line = bufferedReader.readLine();
+
+ if (line == null)
+ break;
+
+ contents.append(line);
+ contents.append("\n");
+ }
+
+ bufferedReader.close();
+ inputStream.close();
+ }
- public JavaFile(final File file) {
- this.file = file;
- }
+ public void skipUntilSemicolon(final Tokenizer tokenizer) throws InvalidSyntaxException {
+ while (true) {
+ final TokenizerMatch token = tokenizer.getNextToken();
- public void parse() {
+ if (token == null)
+ return;
- }
+ if (token.token.equals(";"))
+ return;
+ }
+ }
}