Updated copyright info

[javainspect.git] / src / main / java / eu / svjatoslav / inspector / java / methods / JavaFile.java

diff --git a/src/main/java/eu/svjatoslav/inspector/java/methods/JavaFile.java b/src/main/java/eu/svjatoslav/inspector/java/methods/JavaFile.java
old mode 100644 (file)
new mode 100755 (executable)
index 65cf3bb..09469f8
--- a/src/main/java/eu/svjatoslav/inspector/java/methods/JavaFile.java
+++ b/src/main/java/eu/svjatoslav/inspector/java/methods/JavaFile.java
@@ -1,17 +1,188 @@
+/*
+ * JavaInspect - Utility to visualize java software
+ * Copyright (C) 2013-2020, 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";
+    public final List<Clazz> classes = new ArrayList<>();
+    final StringBuffer contents = new StringBuffer();
+    private final List<Import> imports = new ArrayList<>();
+    private final File file;
+    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;
+        }
+    }
 
 }