Library services updates

Author: sumanmathad

src/main/java/com/learn/SpringBootRESTService/GreetingController.java

@@ -19,7 +19,7 @@ public class GreetingController {
 
 @GetMapping("/greeting")
 public Greeting greeting(@RequestParam(value="name")String name) {
-	greeting.setContent("Hello "+name+", "+"Thanks for hitting suman API");
+	greeting.setContent("Hello "+name+", "+"Thanks for hitting suman's API");
 	greeting.setId(counter.incrementAndGet());
 	return greeting;
 }

src/main/java/com/learn/SpringBootRESTService/LibraryController.java

@@ -1,13 +1,19 @@
 package com.learn.SpringBootRESTService;
 
+import java.util.List;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.HttpStatusCode;
 import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.server.ResponseStatusException;
 
 import com.learn.SpringBootRESTService.Service.LibraryService;
 import com.learn.SpringBootRESTService.repository.LibraryRepository;
@@ -48,6 +54,22 @@ public ResponseEntity addBookImplementation(@RequestBody Library library) {
 
 	}
 
+	@GetMapping("/getBooks/{id}")
+	public Library getBookById(@PathVariable(value = "id")String id) {
+		try{
+			Library lib = repository.findById(id).get();
+		
+		return lib;
+		}
+		catch (Exception e) {
+			throw new ResponseStatusException(HttpStatus.NOT_FOUND);
+		}
+		
+	}
 
+	@GetMapping("/getBooks/author")
+	public List<Library> getBookByAuthorName(@RequestParam(value = "authorname")String authorname) {
+		return repository.findAllByAuthor(authorname);
+	}
 
 }

src/main/java/com/learn/SpringBootRESTService/repository/LibraryRepository.java

@@ -6,6 +6,6 @@
 
 
 
-public interface LibraryRepository extends JpaRepository<Library,String> {
+public interface LibraryRepository extends JpaRepository<Library,String>,LibraryRepositoryCustom {
 
 }

src/main/java/com/learn/SpringBootRESTService/repository/LibraryRepositoryCustom.java

@@ -0,0 +1,10 @@
+package com.learn.SpringBootRESTService.repository;
+
+import java.util.List;
+
+import com.learn.SpringBootRESTService.Library;
+
+public interface LibraryRepositoryCustom {
+	List<Library> findAllByAuthor(String authorName);
+
+}

src/main/java/com/learn/SpringBootRESTService/repository/LibraryRepositoryImpl.java

@@ -0,0 +1,29 @@
+package com.learn.SpringBootRESTService.repository;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Lazy;
+
+import com.learn.SpringBootRESTService.Library;
+
+public class LibraryRepositoryImpl implements LibraryRepositoryCustom {
+	@Lazy
+	@Autowired
+	LibraryRepository repository;
+	
+	@Override
+	public List<Library> findAllByAuthor(String authorName) {
+		List<Library> booksWithAuthor= new ArrayList<Library>();
+		List<Library> books= repository.findAll();
+		
+		for(Library book: books) {
+			if (book.getAuthor().equalsIgnoreCase(authorName)) {
+				booksWithAuthor.add(book);
+			}
+		}
+		return booksWithAuthor;
+	}
+
+}