first commit

CountMostImport/CountMostImport.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="false">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="jdk" jdkName="1.7" jdkType="JavaSDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: com.google.guava:guava:19.0" level="project" />
+  </component>
+</module>

CountMostImport/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.air</groupId>
+    <artifactId>CountMostImport</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+            <version>19.0</version>
+        </dependency>
+
+    </dependencies>
+
+</project>

CountMostImport/src/main/java/CountMostImport.java

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+/**
+ * Created by KL on 2016/6/29.
+ */
+
+import com.google.common.base.CharMatcher;
+import com.google.common.base.Function;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Ordering;
+
+import java.io.*;
+import java.nio.file.*;
+import java.nio.file.attribute.BasicFileAttributes;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static com.google.common.primitives.Ints.min;
+import static java.lang.Math.PI;
+
+public class CountMostImport {
+    //Match files with suffix java
+    private static final PathMatcher matcher = FileSystems.getDefault().getPathMatcher("glob:**.java");
+    //Most N imported classes
+    private static final int mostN = 1000;
+    private List<File> javaFiles = new ArrayList<File>();
+    //Scan path for java files
+    Path path = Paths.get("E:\\code\\work\\campus2016");
+
+
+    private void getJavaFiles() {
+        SimpleFileVisitor<Path> javaFinder = new SimpleFileVisitor<Path>(){
+            @Override
+            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+                if(matcher.matches(file))
+                    javaFiles.add(file.toFile());
+                return super.visitFile(file, attrs);
+            }
+        };
+        try {
+            java.nio.file.Files.walkFileTree(path, javaFinder);
+            System.out.println("files = " + javaFiles);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public List<Map.Entry<String, Long>> countMostImportClass() {
+        Map<String, Long> result = new HashMap<>();
+        getJavaFiles();
+
+        for (File f : javaFiles) {
+            try(BufferedReader bufferedReader = new BufferedReader(new FileReader(f))) {  // Java7 try with resources
+                String line = null;
+                while ((line = bufferedReader.readLine()) != null) {
+                    //process perline
+                    String trimedLine = line.trim();
+                    if(!trimedLine.startsWith("import"))
+                        continue;
+                    //import statement
+                    List<String> pieces = Splitter.on(CharMatcher.anyOf(" ;"))
+                            .trimResults()
+                            .omitEmptyStrings()
+                            .splitToList(trimedLine);
+                    if (pieces.get(pieces.size() - 1).endsWith("*"))
+                        continue;
+                    else if(pieces.size() == 3) {
+                        //Static import
+                        String methodName = pieces.get(pieces.size() - 1);
+                        String classQualifiedName = methodName.substring(0, methodName.lastIndexOf('.'));
+                        result.put(classQualifiedName, result.containsKey(classQualifiedName) ? result.get(classQualifiedName) + 1 : 1);
+                    } else if(pieces.size() == 2) {
+                        // None static
+                        String classQualifiedName = pieces.get(pieces.size() - 1);
+                        result.put(classQualifiedName, result.containsKey(classQualifiedName) ? result.get(classQualifiedName) + 1 : 1);
+                    }
+                }
+            } catch (FileNotFoundException e) {
+                e.printStackTrace();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }// for end
+
+        //Guava Ordering based on map.value
+        Ordering<Map.Entry<String, Long>> valueOrdering = Ordering.natural().onResultOf(
+                new Function<Map.Entry<String, Long>, Long>() {
+                    @Override
+                    public Long apply(Map.Entry<String, Long> entry) {
+                        return entry.getValue();
+                    }
+                }).reverse();
+
+        List< Map.Entry<String, Long>> l = valueOrdering.sortedCopy(result.entrySet());
+        return l.subList(0, min(l.size(), mostN));
+    }
+
+
+    public static void main(String[] args) {
+        System.out.println(PI);
+        List<Map.Entry<String, Long>> l = new CountMostImport().countMostImportClass();
+        System.out.println(l);
+    }
+}

EffectiveLines/EffectiveLines.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="false">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="jdk" jdkName="1.7" jdkType="JavaSDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

EffectiveLines/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.air</groupId>
+    <artifactId>EffectiveLines</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.7</source>
+                    <target>1.7</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+
+</project>

EffectiveLines/src/main/java/EffectiveLines.java

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+import java.io.*;
+
+/**
+ * Created by lqs on 2016/6/25.
+ */
+public class EffectiveLines {
+
+    /**
+     * @param path Java file path in string
+     * @return Effective lines in the java file
+     */
+    public static long countEffectiveLines(String path) {
+        File sourceFile = new File(path);
+        return countEffectiveLines(sourceFile);
+    }
+
+    /**
+     * @param file Java file path
+     * @return Effective lines
+     */
+    public static long countEffectiveLines(File file) {
+        long effectiveLines = 0L;
+
+        try(BufferedReader bufferedReader = new BufferedReader(new FileReader(file))) {  // Java7 try with resources
+            String line = null;
+            while ((line = bufferedReader.readLine()) != null) {
+                //process perline
+                String trimedLine = line.trim();
+                if(trimedLine.equals("") || trimedLine.startsWith("//"))
+                    continue;
+                else
+                    effectiveLines++;
+            }
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+            System.out.println("File not found");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return effectiveLines;
+    }
+
+    public static final void usage() {
+        System.out.println("Usage:\n" +
+                "EffectiveLines filename\n" +
+                "Output: effective lines in the java file\n" +
+                "A line is considered effective if it is not a blank line nor a comment line\n" +
+                "Multi line comment is not in consideration");
+    }
+
+    public static void main(String[] args) {
+        if(args.length < 1) {
+            usage();
+            return;
+        }
+        System.out.println(EffectiveLines.countEffectiveLines(args[0]));
+    }
+}

ExchangeRate/ExchangeRate.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7" inherit-compiler-output="false">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: com.squareup.okhttp3:okhttp:3.3.1" level="project" />
+    <orderEntry type="library" name="Maven: com.squareup.okio:okio:1.8.0" level="project" />
+    <orderEntry type="library" name="Maven: net.sourceforge.htmlcleaner:htmlcleaner:2.6.1" level="project" />
+    <orderEntry type="library" name="Maven: org.jdom:jdom2:2.0.5" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.commons:commons-lang3:3.0" level="project" />
+    <orderEntry type="library" name="Maven: org.apache.poi:poi:3.14" level="project" />
+    <orderEntry type="library" name="Maven: commons-codec:commons-codec:1.10" level="project" />
+  </component>
+</module>