#2 simple metric

pom.xml

@@ -87,6 +87,21 @@ The MIT License (MIT)
  <artifactId>cactoos</artifactId>
  <version>0.20.1</version>
  </dependency>
+ <dependency>
+ <groupId>com.jcabi.incubator</groupId>
+ <artifactId>xembly</artifactId>
+ <version>0.22</version>
+ </dependency>
+ <dependency>
+ <groupId>com.jcabi</groupId>
+ <artifactId>jcabi-xml</artifactId>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>com.jcabi</groupId>
+ <artifactId>jcabi-matchers</artifactId>
+ <scope>test</scope>
+ </dependency>
  <dependency>
  <groupId>org.hamcrest</groupId>
  <artifactId>hamcrest-core</artifactId>

src/main/java/org/jpeek/App.java

@@ -0,0 +1,97 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.jpeek;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import org.cactoos.io.LengthOf;
+import org.cactoos.io.TeeInput;
+import org.cactoos.list.ListOf;
+import org.cactoos.scalar.And;
+import org.cactoos.scalar.IoCheckedScalar;
+import org.jpeek.metrics.basic.TotalFiles;
+import org.xembly.Xembler;
+
+/**
+ * Application.
+ *
+ * <p>There is no thread-safety guarantee.
+ *
+ * @author Yegor Bugayenko (yegor256@gmail.com)
+ * @version $Id$
+ * @since 0.1
+ * @checkstyle ClassDataAbstractionCouplingCheck (500 lines)
+ */
+public final class App {
+
+ /**
+ * Location of the project to analyze.
+ */
+ private final Path input;
+
+ /**
+ * Directory to save reports to.
+ */
+ private final Path output;
+
+ /**
+ * Ctor.
+ * @param source Source directory
+ * @param target Target dir
+ */
+ public App(final Path source, final Path target) {
+ this.input = source;
+ this.output = target;
+ }
+
+ /**
+ * Analyze sources.
+ * @throws IOException If fails
+ */
+ public void analyze() throws IOException {
+ final Base base = new DefaultBase(this.input);
+ final Iterable<Metric> metrics = new ListOf<>(
+ new TotalFiles(base)
+ );
+ new IoCheckedScalar<>(
+ new And(
+ metrics,
+ metric -> {
+ new LengthOf(
+ new TeeInput(
+ new Xembler(metric.xembly()).xmlQuietly(),
+ this.output.resolve(
+ String.format(
+ "%s.xml",
+ metric.getClass().getSimpleName()
+ )
+ )
+ )
+ ).value();
+ }
+ )
+ ).value();
+ }
+
+}

src/main/java/org/jpeek/DefaultBase.java

@@ -37,7 +37,7 @@
  * @version $Id$
  * @since 0.1
  */
-final class DefaultBase implements Base {
+public final class DefaultBase implements Base {
 
  /**
  * Directory.
@@ -48,10 +48,15 @@ final class DefaultBase implements Base {
  * Ctor.
  * @param path Path of the directory with files
  */
- DefaultBase(final Path path) {
+ public DefaultBase(final Path path) {
  this.dir = path;
  }
 
+ @Override
+ public String toString() {
+ return this.dir.toAbsolutePath().toString();
+ }
+
  @Override
  public Iterable<Path> files() throws IOException {
  return Files.walk(this.dir).collect(Collectors.toList());

src/main/java/org/jpeek/Main.java

@@ -0,0 +1,64 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.jpeek;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+/**
+ * Main entry point.
+ *
+ * <p>There is no thread-safety guarantee.
+ *
+ * @author Yegor Bugayenko (yegor256@gmail.com)
+ * @version $Id$
+ * @since 0.1
+ */
+public final class Main {
+
+ /**
+ * Ctor.
+ */
+ private Main() {
+ // intentionally
+ }
+
+ /**
+ * Main Java entry point.
+ * @param args Command line args
+ * @throws IOException If fails
+ */
+ public static void main(final String... args) throws IOException {
+ if (args.length != 2) {
+ throw new IllegalArgumentException(
+ "Exactly two arguments required: source and output directory"
+ );
+ }
+ new App(
+ Paths.get(args[0]),
+ Paths.get(args[1])
+ ).analyze();
+ }
+
+}

src/main/java/org/jpeek/FilesOnlyBase.java → src/main/java/org/jpeek/Metric.java

@@ -24,39 +24,24 @@
 package org.jpeek;
 
 import java.io.IOException;
-import java.nio.file.Path;
-import org.cactoos.iterable.Filtered;
+import org.xembly.Directive;
 
 /**
- * Base with files only.
+ * Single metric.
  *
  * <p>There is no thread-safety guarantee.
  *
  * @author Yegor Bugayenko (yegor256@gmail.com)
  * @version $Id$
  * @since 0.1
  */
-final class FilesOnlyBase implements Base {
+public interface Metric {
 
  /**
- * Base.
+ * Present it in XML format.
+ * @return XML report
+ * @throws IOException If fails
  */
- private final Base base;
-
- /**
- * Ctor.
- * @param bse Original base
- */
- FilesOnlyBase(final Base bse) {
- this.base = bse;
- }
-
- @Override
- public Iterable<Path> files() throws IOException {
- return new Filtered<>(
- this.base.files(),
- path -> path.toFile().isFile()
- );
- }
+ Iterable<Directive> xembly() throws IOException;
 
 }

src/main/java/org/jpeek/metrics/basic/TotalFiles.java

@@ -0,0 +1,74 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package org.jpeek.metrics.basic;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import org.cactoos.iterable.Filtered;
+import org.cactoos.iterable.LengthOf;
+import org.jpeek.Base;
+import org.jpeek.Metric;
+import org.xembly.Directive;
+import org.xembly.Directives;
+
+/**
+ * Total files.
+ *
+ * <p>There is no thread-safety guarantee.
+ *
+ * @author Yegor Bugayenko (yegor256@gmail.com)
+ * @version $Id$
+ * @since 0.1
+ */
+public final class TotalFiles implements Metric {
+
+ /**
+ * The base.
+ */
+ private final Base base;
+
+ /**
+ * Ctor.
+ * @param bse The base
+ */
+ public TotalFiles(final Base bse) {
+ this.base = bse;
+ }
+
+ @Override
+ public Iterable<Directive> xembly() throws IOException {
+ return new Directives()
+ .add("app")
+ .attr("id", this.base.toString())
+ .attr(
+ "value",
+ new LengthOf(
+ new Filtered<>(
+ this.base.files(),
+ path -> Files.isRegularFile(path)
+ )
+ ).value()
+ );
+ }
+}

src/main/java/org/jpeek/metrics/basic/package-info.java

@@ -0,0 +1,32 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Yegor Bugayenko
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * Basic metrics.
+ *
+ * @author Yegor Bugayenko (yegor256@gmail.com)
+ * @version $Id$
+ * @since 0.1
+ */
+package org.jpeek.metrics.basic;