X-Git-Url: http://svarog.pmf.uns.ac.rs/gitweb/?p=pub%2Fdonny%2Fant-tasks.git;a=blobdiff_plain;f=svetovid%2Fnext.java;fp=svetovid%2Fnext.java;h=2153047d6b19a2f772dca161eb085ff90cf9e411;hp=0000000000000000000000000000000000000000;hb=6d35827c1c1eaa78f87fab44b39cd2beac1382b1;hpb=04adb28045b82c599ffd310f93f69d18b6d880a8

diff --git a/svetovid/next.java b/svetovid/next.java
new file mode 100644
index 0000000..2153047
--- /dev/null
+++ b/svetovid/next.java
@@ -0,0 +1,106 @@
+package svetovid;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Task;
+
+import java.io.*;
+
+/**
+ * Na osnovu spiska i trenutnog studenta nadji sledeceg.
+ * cita se iz current.txt, a pise u taj i current.properties
+ * Ovo se onda korisiti za kopiranje fajlova u buildu
+ * (bio je task init)
+ */
+public class next extends Task {
+    private String student, group;
+    private String current;
+    private String file="studenti.txt";
+    private String separator="\t";
+    private String currentFilename="current.txt",
+    	currentProperties="current.properties";
+    
+    
+    private void setCurrent(String c) throws Exception{
+    		current = c;
+    		if (current != null){
+					String[] s = current.split(separator);
+					if (s.length<2) 
+							throw new Exception("problem setting current student name - can't split group and name");
+					student = s[1];
+					group = s[0];
+			} else {
+					student = null;
+					group = null;
+			}
+    }
+    
+    private void loadCurrent(){
+    	try{
+    		File f = new File(currentFilename);
+    		if (f.exists()){
+    				BufferedReader r = new BufferedReader(
+    						new InputStreamReader(
+    								new FileInputStream(f)));
+    				setCurrent(r.readLine());
+    				r.close();
+    		} else 
+    			setCurrent(null);
+    	}catch (Exception ex) {
+    		throw new BuildException(ex);
+    	}
+    }
+    
+    private void saveCurrent(){
+    	try{
+    		PrintWriter w = new PrintWriter(new FileWriter(currentFilename));
+    		w.println(current);
+    		w.close();
+    	}catch (Exception ex) {
+    		throw new BuildException(ex);
+    	}
+    	//now the properties file
+    	try{
+    		PrintWriter w = new PrintWriter(new FileWriter(currentProperties));
+    		w.println("student.group="+group);
+    		w.println("student.current="+student);
+    		w.close();
+    	}catch (Exception ex) {
+    		throw new BuildException(ex);
+    	}		
+    }
+    
+    // The method executing the task
+    public void execute() throws BuildException {
+    	loadCurrent();
+    	try{
+    		BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
+    		String s = r.readLine();
+    		if (current != null) {
+					while (s!=null && s.compareTo(current)!=0)
+						s= r.readLine();
+					setCurrent(r.readLine());
+			} else {
+					setCurrent(s);
+			}
+    		r.close();
+    	}catch (Exception ex) {
+    		throw new BuildException(ex);
+    	}
+        saveCurrent();
+    }
+
+    public void setSeparator(String msg) {
+        this.separator = msg;
+    }
+    
+    public void setFile(String msg) {
+        this.file = msg;
+    }
+    
+    public void setCurrentFilename(String msg) {
+        this.currentFilename = msg;
+    }
+    public void setCurrentProperties(String msg) {
+        this.currentProperties = msg;
+    }
+}