Search a string in entire workspace using eclipse plugin

Question

I want to write a program in java to search a string in entire workspace using eclipse search plugin in my code. I have searched for this problem but couldnt find the result. Kindly help. Every suggestion is appreciated. Thanks in advance.

Answer 1

You do realize that there already is such a functionality in Eclipse, do you? In Eclipse Search -> File... enter your text, select *.* as the File name patterns, and workspace as Scope.

Or do you maybe want to write a plugin that uses this search internally?

From your comments I get the picture that you are looking for code to loop through directories/files and search through them. Maybe this question can help you there.

Answer 2

Use something like the following to recurse through all the projects and folders for file:

import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;


// Get all the projects in the workspace

IProject [] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();

// Search each project

for (IProject project : projects)
 {
   searchContainer(project);
 }


/*
 * Search a project or folder.
 */
private void searchContainer(IContainer container)
{
   // Get all the resources in the container

   IResource [] members = container.members();

   // Look at each resource

   for (IResource member : members)
     {
        if (member instanceof IContainer)
         {
           // Resource is a folder, search that

           searchContainer((IContainer)member);
         }
        else if (member instanceof IFile)
         {
           // Resource is a file, search that
           searchFile((IFile)member);
         }
     }
}

/*
 * Search a file.
 */
private void searchFile(IFile file)
{
  // TODO search the file
} 

You should run this in a Job or other background task as it may take some time to run.

Answer 3

package search_workspace09;

import java.io.*;

import java.util.regex.*;

public class workspace_search09 {

public static void main(String args[])
{
    try
    {
        String dirName="D:/test_folder";
        String stringsearch="world";   
        //String fileName = "test.txt";

        File dir = new File(dirName);

        // Open the file c:\test.txt as a buffered reader

        File[] dirs=dir.listFiles();
         if(dirs!=null)
         {
        for (int i=0;i<dirs.length;i++)
        {      
            if(dirs[i].isFile())
            {
            File filename=dirs[i];
            System.out.println("Files to search in " +filename);
            BufferedReader bf=new BufferedReader(new FileReader(filename));         
            //System.out.println(filename);

            // Start a line count and declare a string to hold our current line.
            int countline=0;
            String line;        

            //pattern search
            Pattern p = Pattern.compile("\\b"+stringsearch+"\\b", Pattern.CASE_INSENSITIVE);

            System.out.println("Search Criteria " +" Filename\t\t\t"+ " Line no. " + " Position\t" + " Line Text ");

            while ( (line = bf.readLine()) != null)
            {
                // Increment the count and find the index of the word
                countline++;

                Matcher m = p.matcher(line);
                // indicate all matches on the line

                while(m.find())
                {                   
                    System.out.println(stringsearch +"\t\t"+ filename+"\t\t" + countline + "\t " + m.start() + "\t"+line);                   
                }                    
            }
            //continue;
        }          
    }}}
    catch (IOException e)
    {
        System.out.println("IO Error Occurred: " + e.toString());
    }}}

Answer 4

public class workspace_search14 {

public static void main(String[] args)throws IOException
{      
    String dir="D:/test_folder";
    File root=new File(dir);
    findFiles(root,0);       
}   
public static void findFiles(File root,int depth) throws IOException
{
    File[] listOfFiles = root.listFiles();
    for (int i = 0; i < listOfFiles.length; i++)
    {
        String iName = listOfFiles[i].getName();
        if (listOfFiles[i].isFile())
        {
            if (iName.endsWith(".txt") || iName.endsWith(".TXT")||iName.endsWith(".java"))
            {  
                for (int j = 0; j < depth; j++)
                    System.out.print("\t");
                System.out.println("\nFile_Name: "+iName);
                searchFiles(listOfFiles[i]);                                   
              }
        }
        else if (listOfFiles[i].isDirectory())
        {  
            for (int j = 0; j < depth; j++)
                System.out.print("\t");
            System.out.println("\nDirectory_Name: "+iName);
            findFiles(listOfFiles[i], depth+1);               
        }
    }
}    
public static void searchFiles(File FileName)throws IOException
{         
    int countline=0;
    String line;        
    String stringsearch="world";  
    BufferedReader bf=new BufferedReader(new FileReader(FileName));

    Pattern p = Pattern.compile("\\b"+stringsearch+"\\b", Pattern.CASE_INSENSITIVE);

    System.out.println("Search Criteria " +" Filename\t\t\t"+ " Line no. " + " Position\t" + " Line Text ");

    while ( (line = bf.readLine()) != null)
    {
        countline++;
        Matcher m = p.matcher(line);

        while(m.find())
        {                   
            System.out.println(stringsearch +"\t\t"+ FileName+"\t\t" + countline + "\t " + m.start() + "\t"+line);                   
        }}}}