10: Create TextInputValidationPlugin

src/main/java/com/bartek/esa/core/di/PluginModule.java

@@ -107,4 +107,10 @@ public class PluginModule {
     public Plugin dangerousPermissionPlugin(GlobMatcher globMatcher, XmlHelper xmlHelper) {
         return new DangerousPermissionPlugin(globMatcher, xmlHelper);
     }
+
+    @Provides
+    @IntoSet
+    public Plugin textInputValidationPlugin(GlobMatcher globMatcher, XmlHelper xmlHelper) {
+        return new TextInputValidationPlugin(globMatcher, xmlHelper);
+    }
 }

src/main/java/com/bartek/esa/core/plugin/TextInputValidationPlugin.java

@@ -0,0 +1,36 @@
+package com.bartek.esa.core.plugin;
+
+import com.bartek.esa.core.archetype.ResourceLayoutPlugin;
+import com.bartek.esa.core.model.enumeration.Severity;
+import com.bartek.esa.core.xml.XmlHelper;
+import com.bartek.esa.file.matcher.GlobMatcher;
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import javax.inject.Inject;
+import java.util.Optional;
+
+public class TextInputValidationPlugin extends ResourceLayoutPlugin {
+
+    @Inject
+    public TextInputValidationPlugin(GlobMatcher globMatcher, XmlHelper xmlHelper) {
+        super(globMatcher, xmlHelper);
+    }
+
+    @Override
+    protected void run(Document xml) {
+        NodeList editTextNodes = xml.getElementsByTagName("EditText");
+        stream(editTextNodes)
+                .filter(this::doesNotHaveInputType)
+                .forEach(n -> addIssue(Severity.WARNING, null, tagString(n)));
+    }
+
+    private boolean doesNotHaveInputType(Node editText) {
+        Boolean doesHaveInputType = Optional.ofNullable(editText.getAttributes().getNamedItem("android:inputType"))
+                .map(Node::getNodeValue)
+                .map(v -> !v.isEmpty())
+                .orElse(false);
+        return !doesHaveInputType;
+    }
+}

src/main/resources/description.properties

@@ -112,3 +112,8 @@ com.bartek.esa.core.plugin.DangerousPermissionPlugin=Custom permission without d
   Custom permission with 'dangerous' protection level was found and it doesn't have any description.\n\
   As long as the permission requires user attention, he should have provided a meaningful description about\n\
   permission.
+
+com.bartek.esa.core.plugin.TextInputValidationPlugin=Input type is no selected.\n\
+  The EditText view doesn't have a input type selected.\n\
+  Consider associating a input type with this view.\n\
+  For example: <EditText android:inputType="number" ...