Configure the CQ5 local instance as a repository for maven

1. Pom.xml

<repositories>

        <repository>

            <id>localinstance</id>

            <name>CQ 5.5 localinstance</name>

            <url>http://localhost:4502/maven/repository</url>

            <releases>

                <enabled>true</enabled>

            </releases>

            <snapshots>

                <enabled>true</enabled>

            </snapshots>

        </repository>

 </repositories>

2. Settings.xml

Settings.xml is under  C:\Users\username\.m2

<servers>

  <server>

      <id>localinstance</id>

      <username>admin</username>

      <password>admin</password>

</server>

  </servers>

3. Download and Install the package in CQ5

Some Useful Data structure interview questions

Remove the leave Node

struct Node * romoveLeafList(struct Node * root){
    if(root==NULL) return NULL;
    if(root->left==NULL && root->right==NULL){
        return NULL;
    }
    root->left=romoveLeafList(root->left);
    root->right=romoveLeafList(root->right);
    return root;
 
}

Remove all the Node which has sum is less than k 

struct Node * sumofnode(struct Node *root, int k, int *sum)
{
    if(root==NULL)return NULL;
    int leftsum=*sum+root->data;
    int rightsum=leftsum;
    root->left=sumofnode(root->left,k,&leftsum);
    root->right=sumofnode(root->right,k,&rightsum);
    *sum=leftsum>rightsum?leftsum:rightsum;
    if(*sum<k)
    return NULL;
    return root;
}

Compile and Run java program using another java program (Java Reflection)

CompileRun.java

import java.io.*;
import java.lang.reflect.*;
public class CompileRun
{
 public static void main(String arg[])throws Exception
 {
  System.out.println(“Helo”);
  new com.sun.tools.javac.Main().compile(new String[]

{“HelloWorld.java”});
  Class c=Class.forName(“HelloWorld”);
  Object o=c.newInstance();
  Object ar[]=new Object[]{};
  Class cl[]=new Class[]{};
  Method m=c.getDeclaredMethod(“print”,cl);
  m.invoke(o,ar);
 
 
 }
}

HelloWorld.java 

public class HelloWorld
{
 public void print()
 {
  System.out.println(“Hello World”);
 }
}

Classpath

1)  %classpath%;Q:\SDE7_Tomcat6_JDK6\Java\jdk1.6.0_24\lib\*

2) javac CompileRun.java

3) java -cp “Q:\SDE7_Tomcat6_JDK6\Java\jdk1.6.0_24\lib\*;.” CompileRun

Ajax call & json object creation from the response using CQ5

javascript

var response = CQ.utils.HTTP.get("resourcepath.selector.json");
if (CQ.HTTP.isOk(response)){ 
var myObject =CQ.HTTP.eval(response);
alert(myObject.name);
}

selector.json.jsp
{"name":"vimal"}

Adobe CQ5 Introduction

Adobe CQ5 is one of the java based web content management system. It combines with DAM, CRXDE Lite, inbox, website console, social collaboration, workflow, campaigns, Users & groups etc. It uses Sling framework, CRX content repository, felix (OSGi framework).

There are three important persons in Adobe CQ5 website creation

Developer – One who create the component

Author - One who Create, modify, delete the content using component and activate the page to publish

End User – One who visit the site

There are two instances in Adobe CQ5

1.      Author instance

2.      Publish instance

Author instance

            It provides the developer to create the new component, templates, workflow, etc. It allows the author to create, edit, delete and publish the content to publish instance

Publish instance

            End user visit the site from publish instance. Here you can’t create, edit or delete the content. Note: It runs with minimum files which is need for publish instance

Note:

Why author instance and publish instance?

         In real the world, sites contents are changed daily bases. So that, They separate the authoring and development in the author instance. Deploy site, load balancing, etc in publishing instance. They maintain the workflow while publishing pages from author to publish environment. 

Android Activity

In Android, Activity is like state  of the application. Each activity has a layout. Activity has a lifecycle.

1. onCreate()

2. onStart()

3. onRestart()

4. onResume()

5. onPause()

6. onStop()

7. onDestroy()

ActivityA.java

package com.example.activitylifecycle;

import android.app.Activity;

import android.os.Bundle;

import android.content.Intent;

import android.view.View;

import android.widget.TextView;

import com.example.activitylifecycle.util.StatusTracker;

import com.example.activitylifecycle.util.Utils;

public class ActivityA extends Activity {

   private String mActivityName;

   private TextView mStatusView;

   private TextView mStatusAllView;

   private StatusTracker mStatusTracker = StatusTracker.getInstance();

   @Override

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_a);

       mActivityName = getString(R.string.activity_a);

       mStatusView = (TextView)findViewById(R.id.status_view_a);

       mStatusAllView = (TextView)findViewById(R.id.status_view_all_a);

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_create));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onStart() {

       super.onStart();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_start));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onRestart() {

       super.onRestart();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_restart));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onResume() {

       super.onResume();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_resume));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onPause() {

       super.onPause();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_pause));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onStop() {

       super.onStop();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_stop));

   }

   @Override

   protected void onDestroy() {

       super.onDestroy();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_destroy));

       mStatusTracker.clear();

   }

   public void startDialog(View v) {

       Intent intent = new Intent(ActivityA.this, DialogActivity.class);

       startActivity(intent);

   }

   public void startActivityB(View v) {

       Intent intent = new Intent(ActivityA.this, ActivityB.class);

       startActivity(intent);

   }

   public void startActivityC(View v) {

       Intent intent = new Intent(ActivityA.this, ActivityC.class);

       startActivity(intent);

   }

 

   public void finishActivityA(View v) {

       ActivityA.this.finish();

   }

}

ActivityB.java

package com.example.activitylifecycle;

import android.app.Activity;

import android.os.Bundle;

import android.content.Intent;

import android.view.View;

import android.widget.TextView;

import com.example.activitylifecycle.util.StatusTracker;

import com.example.activitylifecycle.util.Utils;

public class ActivityB extends Activity {

   private String mActivityName;

   private TextView mStatusView;

   private TextView mStatusAllView;

   private StatusTracker mStatusTracker = StatusTracker.getInstance();

   @Override

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_b);

       mActivityName = getString(R.string.activity_b_label);

       mStatusView = (TextView)findViewById(R.id.status_view_b);

       mStatusAllView = (TextView)findViewById(R.id.status_view_all_b);

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_create));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onStart() {

       super.onStart();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_start));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onRestart() {

       super.onRestart();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_restart));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onResume() {

       super.onResume();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_resume));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onPause() {

       super.onPause();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_pause));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onStop() {

       super.onStop();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_stop));

   }

   @Override

   protected void onDestroy() {

       super.onDestroy();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_destroy));

   }

   public void startDialog(View v) {

       Intent intent = new Intent(ActivityB.this, DialogActivity.class);

       startActivity(intent);

   }

   public void startActivityA(View v) {

       Intent intent = new Intent(ActivityB.this, ActivityA.class);

       startActivity(intent);

   }

   public void startActivityC(View v) {

       Intent intent = new Intent(ActivityB.this, ActivityC.class);

       startActivity(intent);

   }

   public void finishActivityB(View v) {

       ActivityB.this.finish();

   }

}

ActivityC.java

package com.example.android.lifecycle;

import android.app.Activity;

import android.os.Bundle;

import android.content.Intent;

import android.view.View;

import android.widget.TextView;

import com.example.android.lifecycle.util.StatusTracker;

import com.example.android.lifecycle.util.Utils;

public class ActivityC extends Activity {

   private String mActivityName;

   private TextView mStatusView;

   private TextView mStatusAllView;

   private StatusTracker mStatusTracker = StatusTracker.getInstance();

   @Override

   public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_c);

       mActivityName = getString(R.string.activity_c_label);

       mStatusView = (TextView)findViewById(R.id.status_view_c);

       mStatusAllView = (TextView)findViewById(R.id.status_view_all_c);

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_create));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onStart() {

       super.onStart();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_start));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onRestart() {

       super.onRestart();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_restart));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onResume() {

       super.onResume();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_resume));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onPause() {

       super.onPause();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_pause));

       Utils.printStatus(mStatusView, mStatusAllView);

   }

   @Override

   protected void onStop() {

       super.onStop();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_stop));

   }

   @Override

   protected void onDestroy() {

       super.onDestroy();

       mStatusTracker.setStatus(mActivityName, getString(R.string.on_destroy));

   }

   public void startDialog(View v) {

       Intent intent = new Intent(ActivityC.this, DialogActivity.class);

       startActivity(intent);

   }

   public void startActivityA(View v) {

       Intent intent = new Intent(ActivityC.this, ActivityA.class);

       startActivity(intent);

   }

   public void startActivityB(View v) {

       Intent intent = new Intent(ActivityC.this, ActivityB.class);

       startActivity(intent);

   }

   public void finishActivityC(View v) {

       ActivityC.this.finish();

   }

}

DialogActivity.java

package com.example.activitylifecycle;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.view.Window;

public class DialogActivity extends Activity {

   @Override

   protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       requestWindowFeature(Window.FEATURE_NO_TITLE);

       setContentView(R.layout.activity_dialog);

   }

       public void finishDialog(View v) {

       DialogActivity.this.finish();

   }

}

StatusTracker.java

package com.example.activitylifecycle.util;

import java.util.*;

public class StatusTracker {

 private Map<String, String> mStatusMap;

 private List<String> mMethodList;

 private static StatusTracker ourInstance = new StatusTracker();

 private static final String STATUS_SUFFIX = "ed";

 public static StatusTracker getInstance() {

   return ourInstance;

 }

 private StatusTracker() {

   mStatusMap = new LinkedHashMap<String, String>();

   mMethodList = new ArrayList<String>();

 }

 public List<String> getMethodList() {

   return mMethodList;

 }

 public void clear() {

   mMethodList.clear();

   mStatusMap.clear();

 }

   public void setStatus(String activityName, String status) {

   mMethodList.add(activityName + "." + status + "()");

   if (mStatusMap.containsKey(activityName)) mStatusMap.remove(activityName);

   mStatusMap.put(activityName, status);

 }

  public String getStatus(String activityName) {

   String status = mStatusMap.get(activityName);

   status = status.substring(2, status.length());

   // String manipulation to ensure the status value is spelled correctly.

   if (status.endsWith("e")) {

     status = status.substring(0, status.length() - 1);

   }

   if (status.endsWith("p")) {

     status = status + "p";

   }

   status = status + STATUS_SUFFIX;

   return status;

 }

 public Set<String> keySet() {

   return mStatusMap.keySet();

 }

}

Utils.java

package com.example.activitylifecycle.util;

import android.os.Handler;

import android.widget.TextView;

import java.util.List;

public class Utils {

 private static StatusTracker mStatusTracker = StatusTracker.getInstance();

  public static void printStatus(final TextView viewMethods, final TextView viewStatus) {

     Handler handler = new Handler();

     handler.postDelayed(new Runnable() {

       public void run() {

         StringBuilder sbMethods = new StringBuilder();

         List<String> listMethods = mStatusTracker.getMethodList();

         for (String method : listMethods) {

             sbMethods.insert(0, method + "\r\n");

         }

         if(viewMethods != null) {

             viewMethods.setText(sbMethods.toString());

         }

                   StringBuilder sbStatus = new StringBuilder();

         for (String key : mStatusTracker.keySet()) {

           sbStatus.insert(0,key + ": " + mStatusTracker.getStatus(key) + "\n");

         }

         if(viewStatus != null) {

             viewStatus.setText(sbStatus.toString());

         }

       }

     }, 750);

   }

}

Layout ActivityA

Other layout ActivityB and ActivityC also similar to ActivityA.

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

   android:orientation="vertical"

   android:layout_width="match_parent"

   android:layout_height="match_parent"

   android:background="@color/dark_blue"

   android:padding="8dip"

   >

   <TextView android:layout_width="match_parent"

       android:layout_height="wrap_content"

       android:text="@string/activity_a"

       android:gravity="center_horizontal"

       android:textSize="@dimen/font_large"

       android:textColor="@color/light_blue"

       android:paddingBottom="16dip"

       />

   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

       android:orientation="vertical"

       android:layout_width="wrap_content"

       android:layout_height="wrap_content"

       android:layout_gravity="center_horizontal"

       >

       <Button

           android:id="@+id/btn_start_b"

           android:layout_height="wrap_content"

           android:layout_width="wrap_content"

           android:text="@string/btn_start_b_label"

           android:onClick="startActivityB"

           />

       <Button

           android:id="@+id/btn_start_c"

           android:layout_height="wrap_content"

           android:layout_width="wrap_content"

           android:text="@string/btn_start_c_label"

           android:layout_toRightOf="@id/btn_start_b"

           android:onClick="startActivityC"

           />

       <Button

           android:id="@+id/btn_finish_a"

           android:layout_height="wrap_content"

           android:layout_width="wrap_content"

           android:text="@string/btn_finish_a_label"

           android:layout_toRightOf="@id/btn_start_c"

           android:onClick="finishActivityA"

           />

       <Button

           android:id="@+id/btn_start_dialog"

           android:layout_height="wrap_content"

           android:layout_width="wrap_content"

           android:text="@string/btn_start_dialog_label"

           android:layout_toRightOf="@id/btn_finish_a"

           android:onClick="startDialog"

           />

   </RelativeLayout>

   <TextView

       android:layout_width="match_parent"

       android:layout_height="wrap_content"

       android:textSize="@dimen/font_medium"

       android:text="@string/lifecycle_method_list"

       android:textColor="@color/light_blue"

       />

   <ScrollView

        android:layout_width="match_parent"

        android:layout_height="160dp">

       <TextView

           android:id="@+id/status_view_a"

           android:layout_width="match_parent"

           android:layout_height="match_parent"

           android:background="@color/white"

           android:textColor="@color/black"

           android:padding="4dip"

           android:typeface="monospace"

           />

   </ScrollView>

   <TextView

       android:layout_width="match_parent"

       android:layout_height="wrap_content"

       android:textSize="@dimen/font_medium"

       android:text="@string/activity_status"

       android:textColor="@color/light_blue"

       />

   <TextView

       android:id="@+id/status_view_all_a"

       android:layout_width="match_parent"

       android:layout_height="wrap_content"

       android:background="@color/white"

       android:textColor="@color/black"

       android:padding="4dip"

       android:typeface="monospace"

       />

</LinearLayout>

AndroidMenifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

   package="com.example.activitylifecycle"

   android:versionCode="1"

   android:versionName="1.0" >

   <uses-sdk

       android:minSdkVersion="8"

       android:targetSdkVersion="17" />

   <application

       android:allowBackup="true"

       android:icon="@drawable/ic_launcher"

       android:label="@string/app_name"

       android:theme="@style/AppTheme" >

       <activity

           android:name=".ActivityA"

           android:label="@string/app_name" >

           <intent-filter>

               <action android:name="android.intent.action.MAIN" />

               <category android:name="android.intent.category.LAUNCHER" />

           </intent-filter>

       </activity>

        <activity android:name=".ActivityB" />

       <activity android:name=".ActivityC" />

       <activity android:name=".DialogActivity"

                 android:theme="@android:style/Theme.Dialog">

       </activity>

       

   </application>

</manifest>