com.culturedear.chord.ChordAnalyzerController.java Source code

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Here is the source code for com.culturedear.chord.ChordAnalyzerController.java

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/*
 * Copyright 2015 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.culturedear.chord;

import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import org.jfugue.theory.Chord;
import org.jfugue.theory.Intervals;
import org.jfugue.theory.Note;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.Optional;

/**
 * Created by jamesweaver on 10/13/15.
 */
@RestController
public class ChordAnalyzerController {

    // TODO: Remove this static initializer when power chords are supported by JFugue
    static {
        Chord.chordMap.put("POW", new Intervals("1 5"));
    }

    private MusicChord musicChord;

    @RequestMapping("/analyze")
    public ResponseEntity<Object> identifyChordByNotes(@RequestParam(value = "notes") String notes) {
        Chord jfugueChord = null;
        musicChord = null;
        try {
            jfugueChord = Chord.fromNotes(notes);
            musicChord = new MusicChord(Note.getToneStringWithoutOctave(jfugueChord.getRoot().getValue()),
                    jfugueChord.getChordType().toLowerCase(),
                    Note.getToneStringWithoutOctave(jfugueChord.getBassNote().getValue()),
                    jfugueChord.getInversion(), jfugueChord.isMajor(), jfugueChord.isMinor(),
                    jfugueChord.toString());
        } catch (Exception e) {
            System.out.println("Exception encountered in ChordAnalyzerController#identifyChordByNotes: " + e);
        }
        return Optional.ofNullable(musicChord).map(mc -> new ResponseEntity<>((Object) mc, HttpStatus.OK))
                .orElse(new ResponseEntity<>("Could not analyze the chord", HttpStatus.INTERNAL_SERVER_ERROR));

    }
}