Datenspeicherung Student implementiert.

src/main/java/university/at/jku/ce/dao/StudentDao.java

+package university.at.jku.ce.dao;
+
+import java.util.List;
+import java.util.Map;
+
+import university.at.jku.ce.model.Student;
+
+public interface StudentDao {
+	public Student getStudent(long matrNr);
+	public Map<Long,Student>getAllStudents();
+}

src/main/java/university/at/jku/ce/dao/TextStudentDao.java

+package university.at.jku.ce.dao;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import university.at.jku.ce.model.Student;
+import university.at.jku.ce.model.Study;
+
+public class TextStudentDao implements StudentDao {
+
+	Map <Long,Student> students;
+	
+	@Override
+	public Student getStudent(long matrNr) {
+		getAllStudents();
+		return students.get(matrNr);
+	}
+
+	@Override
+	public Map<Long,Student> getAllStudents() {
+		ArrayList <String> lineList=new ArrayList<String>();
+		students=new HashMap<Long,Student>();  
+		try {
+		
+			FileReader fr = new FileReader("C:\\Users\\Michael\\development\\workspace-ce5\\at.jku.ce\\src\\main\\resources\\Students.txt");
+		    BufferedReader br = new BufferedReader(fr);
+		    String line="";
+		
+		    do{
+		    	line = br.readLine();
+		    	lineList.add(line);
+		    }
+		    while (line != null);
+		    br.close();
+		  } catch (Throwable t) {t.printStackTrace();}
+		  
+		  for(String s: lineList) {
+		    	if (s!=null) {
+			    		int i=0;
+			    		Long matrNr;
+			    		String firstName;
+			    		String lastName;
+			    		StringBuilder b=new StringBuilder();
+			    		while (s.charAt(i)!='|') {
+			    			b.append(s.charAt(i));
+			    			i++;
+			   			}
+			   			matrNr=Long.parseLong(b.toString());
+			   			b=new StringBuilder();
+			   			i++;
+			   			while (s.charAt(i)!='|') {
+			    			b.append(s.charAt(i));
+			    			i++;
+			   			}
+			   			firstName=b.toString();
+			   			b=new StringBuilder();
+			   			i++;
+			   			while (i<s.length()) {
+		    				b.append(s.charAt(i));
+		    				i++;			    			
+		    			}
+			    		lastName=b.toString();
+
+			    		students.put(matrNr, new Student(matrNr,firstName,lastName));
+			    		
+			    }		    
+		  	}
+		return students;	  
+	}
+
+}

src/main/java/university/at/jku/ce/model/Student.java

@@ -23,7 +23,7 @@ public class Student {
 		this.lastName=lastName;
 	}
 	
-	public Student(int matrNr, String firstName, String lastName) {
+	public Student(long matrNr, String firstName, String lastName) {
 		this.matrNr=matrNr;
 		this.firstName=firstName;
 		this.lastName=lastName;

src/main/java/university/at/jku/ce/resource/StudentResource.java

@@ -25,48 +25,48 @@ public class StudentResource {
 	    
 		Service service=new ServiceImpl();
 			
-//		@GET
-//	    @Produces(MediaType.APPLICATION_JSON)
-//	    public Response getStudents() {
-//			List<Student>list= studentService.getAllStudents();
-//			GenericEntity<List<Student>> entity=new GenericEntity<List<Student>>(list) {};
-//			 return Response.ok(entity).build();
-//	    }
-//		
+		@GET
+	    @Produces(MediaType.APPLICATION_JSON)
+	    public Response getStudents() {
+			List<Student>list= service.getAllStudents();
+			GenericEntity<List<Student>> entity=new GenericEntity<List<Student>>(list) {};
+			 return Response.ok(entity).build();
+	    }
+		
 ////		@GET
 ////	    @Produces(MediaType.APPLICATION_XML)
 ////	    public List <Student> getStudents() {
 ////			return studentService.getAllStudents();
 ////	    }
-//		
+		
 //		@POST
 //		@Consumes(MediaType.APPLICATION_JSON)
 //		@Produces(MediaType.APPLICATION_JSON)
 //		public Student addStudent(Student student) {
-//			return studentService.addStudent(student);
+//			return service.addStudent(student);
 //		}
-//		
+		
 ////		@POST
 ////		@Consumes(MediaType.APPLICATION_XML)
 ////		@Produces(MediaType.APPLICATION_XML)
 ////		public Student addMessage(Student student) {
 ////			return studentService.addStudent(student);
 ////		}
-//		
-//		@GET
-//		@Path("/{studentMatrNr}")
-//		@Produces(MediaType.APPLICATION_JSON)
-//		public Student getStudent(@PathParam("studentMatrNr")long matrNr) {
-//			return studentService.getStudent(matrNr);
-//		}
-//		
+		
+		@GET
+		@Path("/{studentMatrNr}")
+		@Produces(MediaType.APPLICATION_JSON)
+		public Student getStudent(@PathParam("studentMatrNr")long matrNr) {
+			return service.getStudent(matrNr);
+		}
+		
 ////		@GET
 ////		@Path("/{studentMatrNr}")
 ////		@Produces(MediaType.APPLICATION_XML)
 ////		public Student getStudent(@PathParam("studentMatrNr")long matrNr) {
 ////			return studentService.getStudent(matrNr);
 ////		}
-//	
+	
 //		@PUT
 //		@Path("/{studentMatrNr}")
 //		@Consumes(MediaType.APPLICATION_JSON)
@@ -75,7 +75,7 @@ public class StudentResource {
 //			student.setMatrNr(matrNr); //if User does not send correct id it is still used correct id from URL
 //			return studentService.updateStudent(student);
 //		}
-//		
+		
 ////		@PUT
 ////		@Path("/{studentMatrNr}")
 ////		@Consumes(MediaType.APPLICATION_XML)
@@ -84,14 +84,14 @@ public class StudentResource {
 ////			student.setMatrNr(matrNr); //if User does not send correct id it is still used correct id from URL
 ////			return studentService.updateStudent(student);
 ////		}
-//		
+		
 //		@DELETE
 //		@Path("/{studentMatrNr}")
 //		@Produces(MediaType.APPLICATION_JSON)
 //		public void deleteStudent(@PathParam("studentMatrNr")long matrNr) {
 //			studentService.removeStudent(matrNr);
 //		}
-//		
+		
 ////		@DELETE
 ////		@Path("/{studentMatrNr}")
 ////		@Produces(MediaType.APPLICATION_XML)

src/main/java/university/at/jku/ce/service/Service.java

@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
+import university.at.jku.ce.model.Student;
 import university.at.jku.ce.model.Study;
 import university.at.jku.ce.model.Subject;
 
@@ -27,4 +28,10 @@ public interface Service {
 	public Subject updateSubject (long studyId, Subject subject);
 	
 	public void removeSubject (long studyId, long id);
+	
+	public Student getStudent(Long matrNr);
+	
+	public List<Student>getAllStudents();
+	
+	
 }

src/main/java/university/at/jku/ce/service/ServiceImpl.java

@@ -4,10 +4,14 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+
+import university.at.jku.ce.dao.StudentDao;
 import university.at.jku.ce.dao.StudyDao;
 import university.at.jku.ce.dao.SubjectDao;
+import university.at.jku.ce.dao.TextStudentDao;
 import university.at.jku.ce.dao.TextStudyDao;
 import university.at.jku.ce.dao.TextSubjectDao;
+import university.at.jku.ce.model.Student;
 import university.at.jku.ce.model.Study;
 import university.at.jku.ce.model.Subject;
 
@@ -15,6 +19,7 @@ public class ServiceImpl implements Service{
 
 private StudyDao studyDao=new TextStudyDao();
 private SubjectDao subjectDao=new TextSubjectDao();
+private StudentDao studentDao=new TextStudentDao();
 	
 	public ServiceImpl() {
 	}
@@ -70,4 +75,14 @@ private SubjectDao subjectDao=new TextSubjectDao();
 	public void removeSubject (long studyId, long id) {
 		subjectDao.removeSubject(studyId,id);
 	}
+
+	@Override
+	public Student getStudent(Long matrNr) {
+		return studentDao.getStudent(matrNr);
+	}
+
+	@Override
+	public List<Student> getAllStudents() {
+		return new ArrayList<Student>(studentDao.getAllStudents().values());
+	}
 }

src/main/resources/Students.txt

+1|Franz|Reischl
+2|Michael|Schimpelsberger
\ No newline at end of file

src/main/resources/Subjects.txt

-1|1|Datenmodellierung|Grundlagen Datenmodellierung
-2|1|Softwareenticklung|Soft1
-2|2|inf|Einführung inf
+1|1|Softwareentwicklung 2|Soft 2
+1|2|Informationmanagement|Grundlagen IM

html-minirest @ 3aa4125b

-Subproject commit e020166a1ddfbf402cf2389a0bc4b7340fb963ed
+Subproject commit 3aa4125b377b8de8a9330f8139ded46155e234c5