101 lines
3.2 KiB
Java
101 lines
3.2 KiB
Java
package info.nightscout.utils;
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import android.text.Html;
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import android.text.Spanned;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.util.Iterator;
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/**
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* Created by mike on 11.07.2016.
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*/
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public class JSONFormatter {
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public static Spanned format(final String jsonString) {
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final JsonVisitor visitor = new JsonVisitor(4, ' ');
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try {
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return Html.fromHtml(visitor.visit(new JSONObject(jsonString), 0));
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} catch (JSONException e) {
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e.printStackTrace();
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return Html.fromHtml("");
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}
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}
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public static Spanned format(final JSONObject object) {
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final JsonVisitor visitor = new JsonVisitor(4, ' ');
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try {
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return Html.fromHtml(visitor.visit(object, 0));
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} catch (JSONException e) {
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e.printStackTrace();
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return Html.fromHtml("");
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}
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}
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private static class JsonVisitor {
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private final int indentationSize;
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private final char indentationChar;
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public JsonVisitor(final int indentationSize, final char indentationChar) {
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this.indentationSize = indentationSize;
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this.indentationChar = indentationChar;
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}
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private String visit(final JSONArray array, final int indent) throws JSONException {
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String ret = "";
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final int length = array.length();
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if (length == 0) {
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} else {
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ret += write("[", indent);
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for (int i = 0; i < length; i++) {
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ret += visit(array.get(i), indent + 1);
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}
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ret += write("]", indent);
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}
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return ret;
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}
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private String visit(final JSONObject obj, final int indent) throws JSONException {
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String ret = "";
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final int length = obj.length();
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if (length == 0) {
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} else {
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final Iterator<String> keys = obj.keys();
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while (keys.hasNext()) {
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final String key = keys.next();
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ret += write("<b>" + key + "</b>: ", indent + 1);
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ret += visit(obj.get(key), 0);
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ret += "<br>";
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}
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}
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return ret;
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}
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private String visit(final Object object, final int indent) throws JSONException {
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String ret = "";
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if (object instanceof JSONArray) {
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ret += visit((JSONArray) object, indent);
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} else if (object instanceof JSONObject) {
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ret += visit((JSONObject) object, indent);
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} else {
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if (object instanceof String) {
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ret += write("\"" + (String) object + "\"", indent);
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} else {
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ret += write(String.valueOf(object), indent);
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}
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}
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return ret;
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}
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private String write(final String data, final int indent) {
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String ret = "";
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for (int i = 0; i < (indent * indentationSize); i++) {
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ret += indentationChar;
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}
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ret += data;
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return ret;
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}
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}
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} |