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Posted to commits@sling.apache.org by si...@apache.org on 2019/06/18 14:42:30 UTC

[sling-org-apache-sling-feature-inventoryprinter] branch r2f updated: [r2f] reducing redundant code

This is an automated email from the ASF dual-hosted git repository.

simonetripodi pushed a commit to branch r2f
in repository https://gitbox.apache.org/repos/asf/sling-org-apache-sling-feature-inventoryprinter.git


The following commit(s) were added to refs/heads/r2f by this push:
     new deee9ce  [r2f] reducing redundant code
deee9ce is described below

commit deee9ce56a22c6d7f46596ac62c40a1e875a44d2
Author: Simo Tripodi <st...@adobe.com>
AuthorDate: Tue Jun 18 16:42:22 2019 +0200

    [r2f] reducing redundant code
---
 ...r.java => AbstractFeatureInventoryPrinter.java} | 41 +++++++++++---------
 ...ractRuntimeEnvironment2FeatureModelPrinter.java | 45 +++-------------------
 .../impl/FeaturesInventoryPrinter.java             | 42 +++++++++-----------
 3 files changed, 46 insertions(+), 82 deletions(-)

diff --git a/src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java b/src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractFeatureInventoryPrinter.java
similarity index 59%
copy from src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java
copy to src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractFeatureInventoryPrinter.java
index ac9710c..c11efa2 100644
--- a/src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java
+++ b/src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractFeatureInventoryPrinter.java
@@ -18,36 +18,41 @@
  */
 package org.apache.sling.feature.inventoryservice.impl;
 
-import org.apache.felix.inventory.Format;
-import org.apache.felix.inventory.InventoryPrinter;
-import org.osgi.framework.BundleContext;
-import org.osgi.service.component.annotations.Activate;
-import org.osgi.service.component.annotations.Component;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.nio.file.Files.newBufferedReader;
 
+import java.io.BufferedReader;
 import java.io.PrintWriter;
 import java.net.URI;
-import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 
-@Component(
-property = {InventoryPrinter.NAME + "=launch_feature",
-        InventoryPrinter.TITLE + "=Launch Feature",
-        InventoryPrinter.FORMAT + "=JSON"})
-public class FeaturesInventoryPrinter implements InventoryPrinter
-{
+import org.apache.felix.inventory.Format;
+import org.apache.felix.inventory.InventoryPrinter;
+import org.osgi.framework.BundleContext;
+import org.osgi.service.component.annotations.Activate;
+
+abstract class AbstractFeatureInventoryPrinter implements InventoryPrinter {
+
+    private static final String SLING_FEATURE_PROPERTY_NAME = "sling.feature";
+
     @Activate
-    BundleContext bc;
+    BundleContext bundleContext;
 
     @Override
-    public void print(PrintWriter printWriter, Format format, boolean isZip) {
-        try {
-            Path path = Paths.get(new URI(bc.getProperty("sling.feature")));
-            byte[] bytes = Files.readAllBytes(path);
-            printWriter.print(new String(bytes));
+    public final void print(PrintWriter printWriter, Format format, boolean isZip) {
+        String featureLocation = bundleContext.getProperty(SLING_FEATURE_PROPERTY_NAME);
+        URI previousFeatureURI = URI.create(featureLocation);
+        Path previousFeaturePath = Paths.get(previousFeatureURI);
+
+        try (BufferedReader reader = newBufferedReader(previousFeaturePath, UTF_8)) {
+            onFeature(featureLocation, reader, printWriter);
         } catch (Exception e) {
             e.printStackTrace(printWriter);
         }
         printWriter.println();
     }
+
+    protected abstract void onFeature(String featureLocation, BufferedReader reader, PrintWriter printWriter) throws Exception;
+
 }
diff --git a/src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractRuntimeEnvironment2FeatureModelPrinter.java b/src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractRuntimeEnvironment2FeatureModelPrinter.java
index bb3e322..6d71c9d 100644
--- a/src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractRuntimeEnvironment2FeatureModelPrinter.java
+++ b/src/main/java/org/apache/sling/feature/inventoryservice/impl/AbstractRuntimeEnvironment2FeatureModelPrinter.java
@@ -16,54 +16,27 @@
  */
 package org.apache.sling.feature.inventoryservice.impl;
 
-import static java.nio.charset.StandardCharsets.UTF_8;
-import static java.nio.file.Files.newBufferedReader;
 import static org.apache.sling.feature.io.json.FeatureJSONReader.read;
 import static org.apache.sling.feature.io.json.FeatureJSONWriter.write;
 
-import java.io.IOException;
+import java.io.BufferedReader;
 import java.io.PrintWriter;
-import java.io.Reader;
-import java.net.URI;
-import java.nio.file.Path;
-import java.nio.file.Paths;
 
-import org.apache.felix.inventory.Format;
-import org.apache.felix.inventory.InventoryPrinter;
 import org.apache.sling.feature.ArtifactId;
 import org.apache.sling.feature.Feature;
 import org.apache.sling.feature.r2f.ConversionRequest;
 import org.apache.sling.feature.r2f.DefaultConversionRequest;
 import org.apache.sling.feature.r2f.RuntimeEnvironment2FeatureModel;
-import org.osgi.framework.BundleContext;
-import org.osgi.service.component.annotations.Activate;
 import org.osgi.service.component.annotations.Reference;
 
-abstract class AbstractRuntimeEnvironment2FeatureModelPrinter implements InventoryPrinter {
-
-    private static final String SLING_FEATURE_PROPERTY_NAME = "sling.feature";
+abstract class AbstractRuntimeEnvironment2FeatureModelPrinter extends AbstractFeatureInventoryPrinter {
 
     @Reference
     RuntimeEnvironment2FeatureModel generator;
 
-    @Activate
-    BundleContext bundleContext;
-
     @Override
-    public final void print(PrintWriter printWriter, Format format, boolean isZip) {
-        String previousFeatureLocation = bundleContext.getProperty(SLING_FEATURE_PROPERTY_NAME);
-        URI previousFeatureURI = URI.create(previousFeatureLocation);
-        Path previousFeaturePath = Paths.get(previousFeatureURI);
-        Feature previousFeature = null;
-
-        try (Reader reader = newBufferedReader(previousFeaturePath, UTF_8)) {
-            previousFeature = read(reader, previousFeatureLocation);
-        } catch (IOException e) {
-            throw new RuntimeException("An error occurred while reading 'sling.feature' framework-property "
-                    + previousFeatureLocation
-                    + ", see causing error(s):",
-                    e);
-        }
+    protected void onFeature(String featureLocation, BufferedReader reader, PrintWriter printWriter) throws Exception {
+        Feature previousFeature = read(reader, featureLocation);
 
         String groupId = previousFeature.getId().getGroupId();
         String artifactId = previousFeature.getId().getArtifactId();
@@ -77,15 +50,7 @@ abstract class AbstractRuntimeEnvironment2FeatureModelPrinter implements Invento
 
         Feature computedFeature = compute(previousFeature, currentFeature);
 
-        try {
-            write(printWriter, computedFeature);
-        } catch (IOException e) {
-            printWriter.append("An error occured while searlizing ")
-                       .append(computedFeature.toString())
-                       .append(":\n");
-
-            e.printStackTrace(printWriter);
-        }
+        write(printWriter, computedFeature);
     }
 
     protected abstract Feature compute(Feature previousFeature, Feature currentFeature);
diff --git a/src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java b/src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java
index ac9710c..76bff52 100644
--- a/src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java
+++ b/src/main/java/org/apache/sling/feature/inventoryservice/impl/FeaturesInventoryPrinter.java
@@ -18,36 +18,30 @@
  */
 package org.apache.sling.feature.inventoryservice.impl;
 
-import org.apache.felix.inventory.Format;
-import org.apache.felix.inventory.InventoryPrinter;
-import org.osgi.framework.BundleContext;
-import org.osgi.service.component.annotations.Activate;
-import org.osgi.service.component.annotations.Component;
+import static org.apache.felix.inventory.InventoryPrinter.FORMAT;
+import static org.apache.felix.inventory.InventoryPrinter.NAME;
+import static org.apache.felix.inventory.InventoryPrinter.TITLE;
 
+import java.io.BufferedReader;
 import java.io.PrintWriter;
-import java.net.URI;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
+
+import org.osgi.service.component.annotations.Component;
 
 @Component(
-property = {InventoryPrinter.NAME + "=launch_feature",
-        InventoryPrinter.TITLE + "=Launch Feature",
-        InventoryPrinter.FORMAT + "=JSON"})
-public class FeaturesInventoryPrinter implements InventoryPrinter
-{
-    @Activate
-    BundleContext bc;
+    property = {
+        NAME + "=launch_feature",
+        TITLE + "=Launch Feature",
+        FORMAT + "=JSON"
+    }
+)
+public class FeaturesInventoryPrinter extends AbstractFeatureInventoryPrinter {
 
     @Override
-    public void print(PrintWriter printWriter, Format format, boolean isZip) {
-        try {
-            Path path = Paths.get(new URI(bc.getProperty("sling.feature")));
-            byte[] bytes = Files.readAllBytes(path);
-            printWriter.print(new String(bytes));
-        } catch (Exception e) {
-            e.printStackTrace(printWriter);
+    protected void onFeature(String featureLocation, BufferedReader reader, PrintWriter printWriter) throws Exception {
+        String line = null;
+        while ((line = reader.readLine()) != null) {
+            printWriter.println(line);
         }
-        printWriter.println();
     }
+
 }