Java Code Examples for android.util.JsonWriter#beginObject()

public static String listToJsonStr(final List<Object> list) {
    if (list == null || list.isEmpty()) {
        return EMPTY_STRING;
    }
    final StringWriter sw = new StringWriter();
    final JsonWriter writer = new JsonWriter(sw);
    try {
        writer.beginArray();
        for (final Object o : list) {
            writer.beginObject();
            if (o instanceof Integer) {
                writer.name(INTEGER_CLASS_NAME).value((Integer)o);
            } else if (o instanceof String) {
                writer.name(STRING_CLASS_NAME).value((String)o);
            }
            writer.endObject();
        }
        writer.endArray();
        return sw.toString();
    } catch (final IOException e) {
    } finally {
        close(writer);
    }
    return EMPTY_STRING;
}
 

public static String listToJsonStr(final List<Object> list) {
    if (list == null || list.isEmpty()) {
        return EMPTY_STRING;
    }
    final StringWriter sw = new StringWriter();
    final JsonWriter writer = new JsonWriter(sw);
    try {
        writer.beginArray();
        for (final Object o : list) {
            writer.beginObject();
            if (o instanceof Integer) {
                writer.name(INTEGER_CLASS_NAME).value((Integer)o);
            } else if (o instanceof String) {
                writer.name(STRING_CLASS_NAME).value((String)o);
            }
            writer.endObject();
        }
        writer.endArray();
        return sw.toString();
    } catch (final IOException e) {
    } finally {
        close(writer);
    }
    return EMPTY_STRING;
}
 

public void toJSON(JsonWriter writer) throws IOException {
    writer.beginObject();
    writer.name("status").value(status);
    writer.name("rcode").value(rcode);
    writer.name("server").value(server);
    writer.name("qsize").value(qsize);
    writer.name("asize").value(asize);
    writer.name("flag_AA").value(flag_AA);
    writer.name("flag_TC").value(flag_TC);
    writer.name("flag_RD").value(flag_RD);
    writer.name("flag_RA").value(flag_RA);
    writer.name("flag_AD").value(flag_AD);
    writer.name("flag_CD").value(flag_CD);
    writer.name("answerText").value(answerText);
    writer.name("runtimestamp").value(runtimestamp);
    writer.name("duration").value(duration);
    writer.endObject();
}
 

public static String listToJsonStr(final List<Object> list) {
    if (list == null || list.isEmpty()) {
        return EMPTY_STRING;
    }
    final StringWriter sw = new StringWriter();
    final JsonWriter writer = new JsonWriter(sw);
    try {
        writer.beginArray();
        for (final Object o : list) {
            writer.beginObject();
            if (o instanceof Integer) {
                writer.name(INTEGER_CLASS_NAME).value((Integer)o);
            } else if (o instanceof String) {
                writer.name(STRING_CLASS_NAME).value((String)o);
            }
            writer.endObject();
        }
        writer.endArray();
        return sw.toString();
    } catch (final IOException e) {
    } finally {
        close(writer);
    }
    return EMPTY_STRING;
}
 

private String getDataSettings(Context context)throws IOException{
    String[]names=new String[]{"Settings","ScrapedTags"};
    StringWriter sw=new StringWriter();
    JsonWriter writer=new JsonWriter(sw);
    writer.setIndent("\t");

    writer.beginObject();
    for(String name:names)
        processSharedFromName(writer,context,name);
    writer.endObject();

    writer.flush();
    String settings=sw.toString();
    writer.close();

    LogUtility.d(settings);
    return settings;
}
 

private static void writeTag(JsonWriter jw, Tag tag) throws IOException{
    jw.beginObject();
    jw.name("id").value(tag.getId());
    jw.name("name").value(tag.getName());
    jw.name("type").value(tag.getTypeSingleName());
    jw.endObject();
}
 

private void toJsonTitle(JsonWriter writer)throws IOException{
    String title;
    writer.name("title");
    writer.beginObject();
    if((title=getTitle(TitleType.JAPANESE))!=null)
        writer.name("japanese").value(title);
    if((title=getTitle(TitleType.PRETTY))!=null)
        writer.name("pretty").value(title);
    if((title=getTitle(TitleType.ENGLISH))!=null)
        writer.name("english").value(title);
    writer.endObject();
}
 

private void processSharedFromName(JsonWriter writer, Context context, String name)throws IOException{
    writer.name(name);
    writer.beginObject();
    SharedPreferences preferences=context.getSharedPreferences(name,0);
    for(Map.Entry<String,?> entry: preferences.getAll().entrySet()){
        writeEntry(writer,entry);
    }
    writer.endObject();
}
 

public void jsonWrite(Writer ww)throws IOException{
    //images aren't saved
    JsonWriter writer=new JsonWriter(ww);
    writer.beginObject();
    writer.name("id").value(getId());
    writer.name("media_id").value(getMediaId());
    writer.name("upload_date").value(getUploadDate().getTime()/1000);
    writer.name("num_favorites").value(getFavoriteCount());
    toJsonTitle(writer);
    toJsonTags(writer);

    writer.endObject();
    writer.flush();
}
 

private static String serializeTotalAmount(PaymentCurrencyAmount totalAmount) {
    StringWriter stringWriter = new StringWriter();
    JsonWriter json = new JsonWriter(stringWriter);
    try {
        // {{{
        json.beginObject();
        json.name("currency").value(totalAmount.currency);
        json.name("value").value(totalAmount.value);
        json.endObject();
        // }}}
    } catch (IOException e) {
        return null;
    }
    return stringWriter.toString();
}
 

void writeJson(JsonWriter writer)throws IOException{
    writer.beginObject();
    writer.name("count").value(count);
    writer.name("type").value(getTypeSingleName());
    writer.name("id").value(id);
    writer.name("name").value(name);
    writer.endObject();
}
 

private static void encodeTuple(JsonWriter writer, ShareTuple tuple) throws IOException {
  if (tuple == ShareTuple.EMPTY_TUPLE) {
    writer.nullValue();
  } else {
    writer.beginObject();
    writer.name(WORKGROUP_KEY).value(tuple.mWorkgroup);
    writer.name(USERNAME_KEY).value(tuple.mUsername);
    writer.name(PASSWORD_KEY).value(tuple.mPassword);
    writer.name(MOUNT_KEY).value(tuple.mIsMounted);
    writer.endObject();
  }
}
 

void writeDescriptionTermsArray(JsonWriter writer, List<DescriptionTerm> descriptionTerms) throws IOException {
    writer.beginArray();
    for (DescriptionTerm term : descriptionTerms) {
        writer.beginObject();
        writer.name("offset").value(term.offset);
        writer.name("value").value(term.value);
        writer.endObject();
    }
    writer.endArray();
}
 

@Test
public void testJsonWriter() throws Exception {
    StringWriter sw = new StringWriter();
    JsonWriter jw = new JsonWriter(sw);
    jw.beginObject();
    jw.name("test");
    jw.value("world");
    jw.endObject();
    jw.flush();

    assertEquals("{\"test\":\"world\"}", sw.toString());

}
 

private static void serializePaymentItem(PaymentItem item, JsonWriter json) throws IOException {
    // item {{{
    json.beginObject();
    json.name("label").value(item.label);

    // amount {{{
    json.name("amount").beginObject();
    json.name("currency").value(item.amount.currency);
    json.name("value").value(item.amount.value);
    json.endObject();
    // }}} amount

    json.endObject();
    // }}} item
}
 

void writeMatchedSubstringsArray(JsonWriter writer, List<MatchedSubstring> matchedSubstrings) throws IOException {
    writer.beginArray();
    for (MatchedSubstring matchedSubstring : matchedSubstrings) {
        writer.beginObject();
        writer.name("length").value(matchedSubstring.length);
        writer.name("offset").value(matchedSubstring.offset);
        writer.endObject();
    }
    writer.endArray();
}
 

@SuppressWarnings("deprecation")
private void addProperties(JsonWriter j, View v) throws IOException {
    final Class<?> viewClass = v.getClass();
    boolean processable = true;
    for (final PropertyDescription desc : mProperties) {
        if (desc.targetClass.isAssignableFrom(viewClass) && null != desc.accessor) {
            final Object value = desc.accessor.applyMethod(v);

            if (processable) {
                if (!TextUtils.isEmpty(desc.name)) {
                    if ("clickable".equals(desc.name)) {
                        boolean isClickable = (Boolean) value;
                        if (!isClickable || v instanceof AbsListView || v instanceof AbsoluteLayout) {
                            processable = false;
                        }
                    } else if ("alpha".equals(desc.name)) {
                        float alpha = (Float) value;
                        // 透明度是0则不可见
                        if (alpha == 0) {
                            processable = false;
                        }
                    } else if ("hidden".equals(desc.name)) {
                        int hide = (Integer) value;
                        // hidden是0则隐藏
                        if (hide != 0) {
                            processable = false;
                        }
                    }
                }
            }
            j.name("processable").value(processable ? "1" : "0");
            if (null == value) {
                // Don't produce anything in this case
            } else if (value instanceof Number) {
                j.name(desc.name).value((Number) value);
            } else if (value instanceof Boolean) {
                j.name(desc.name).value((Boolean) value);
            } else if (value instanceof ColorStateList) {
                j.name(desc.name).value((Integer) ((ColorStateList) value).getDefaultColor());
            } else if (value instanceof Drawable) {
                final Drawable drawable = (Drawable) value;
                final Rect bounds = drawable.getBounds();
                j.name(desc.name);
                j.beginObject();
                j.name("classes");
                j.beginArray();
                Class<?> klass = drawable.getClass();
                while (klass != Object.class) {
                    j.value(klass.getCanonicalName());
                    klass = klass.getSuperclass();
                }
                j.endArray();
                j.name("dimensions");
                j.beginObject();
                j.name("left").value(bounds.left);
                j.name("right").value(bounds.right);
                j.name("top").value(bounds.top);
                j.name("bottom").value(bounds.bottom);
                j.endObject();
                if (drawable instanceof ColorDrawable) {
                    final ColorDrawable colorDrawable = (ColorDrawable) drawable;
                    j.name("color").value(colorDrawable.getColor());
                }
                j.endObject();
            } else {
                j.name(desc.name).value(value.toString());
            }
        }
    }
}
 

/**
 * Stringify the card details and send the resulting string and the method name to the
 * registered callback.
 */
private void sendIntrumentDetails() {
    StringWriter stringWriter = new StringWriter();
    JsonWriter json = new JsonWriter(stringWriter);
    try {
        json.beginObject();

        json.name("cardholderName").value(mCard.getName());
        json.name("cardNumber").value(mCard.getNumber());
        json.name("expiryMonth").value(mCard.getMonth());
        json.name("expiryYear").value(mCard.getYear());
        json.name("cardSecurityCode").value(mSecurityCode);

        json.name("billingAddress").beginObject();

        json.name("country").value(ensureNotNull(mBillingAddress.getCountryCode()));
        json.name("region").value(ensureNotNull(mBillingAddress.getRegion()));
        json.name("city").value(ensureNotNull(mBillingAddress.getLocality()));
        json.name("dependentLocality")
                .value(ensureNotNull(mBillingAddress.getDependentLocality()));

        json.name("addressLine").beginArray();
        String multipleLines = ensureNotNull(mBillingAddress.getStreetAddress());
        if (!TextUtils.isEmpty(multipleLines)) {
            String[] lines = multipleLines.split("\n");
            for (int i = 0; i < lines.length; i++) {
                json.value(lines[i]);
            }
        }
        json.endArray();

        json.name("postalCode").value(ensureNotNull(mBillingAddress.getPostalCode()));
        json.name("sortingCode").value(ensureNotNull(mBillingAddress.getSortingCode()));
        json.name("languageCode").value(ensureNotNull(mBillingAddress.getLanguageCode()));
        json.name("organization").value(ensureNotNull(mBillingAddress.getCompanyName()));
        json.name("recipient").value(ensureNotNull(mBillingAddress.getFullName()));
        json.name("phone").value(ensureNotNull(mBillingAddress.getPhoneNumber()));

        json.endObject();

        json.endObject();
    } catch (IOException e) {
        onFullCardError();
        return;
    } finally {
        mSecurityCode = "";
    }

    mCallback.onInstrumentDetailsReady(
            mCard.getBasicCardPaymentType(), stringWriter.toString());
}
 

private static void writeViewProperties(JsonWriter j, View v, ViewSnapshotConfig snapshotConfig) throws IOException {
    final Class<?> viewClass = v.getClass();
    for (final ViewProperty desc : snapshotConfig.propertyDescriptionList) {
        if (desc.target.isAssignableFrom(viewClass) && null != desc.accessor) {
            final Object value = desc.accessor.invokeMethod(v);
            //noinspection StatementWithEmptyBody
            if (null == value) {
                // no-op
            }  else if (value instanceof Boolean) {
                j.name(desc.name).value((Boolean) value);
            } else if (value instanceof Number) {
                j.name(desc.name).value((Number) value);
            } else if (value instanceof ColorStateList) {
                j.name(desc.name).value((Integer) ((ColorStateList) value).getDefaultColor());
            } else if (value instanceof Drawable) {
                final Drawable drawable = (Drawable) value;
                final Rect bounds = drawable.getBounds();
                j.name(desc.name);
                j.beginObject();
                j.name("classes");
                j.beginArray();
                Class klass = drawable.getClass();
                while (klass != Object.class) {
                    if (klass != null) {
                        j.value(klass.getCanonicalName());
                        klass = klass.getSuperclass();
                    }
                }
                j.endArray();
                j.name("dimensions");
                j.beginObject();
                j.name("left").value(bounds.left);
                j.name("right").value(bounds.right);
                j.name("top").value(bounds.top);
                j.name("bottom").value(bounds.bottom);
                j.endObject();
                if (drawable instanceof ColorDrawable) {
                    final ColorDrawable colorDrawable = (ColorDrawable) drawable;
                    j.name("color").value(colorDrawable.getColor());
                }
                j.endObject();
            } else {
                j.name(desc.name).value(value.toString());
            }
        }
    }
}
 

private void mergeWebViewNodes(JsonWriter j, WebNode view, View webView, float webViewScale) {
    try {
        j.beginObject();
        j.name("hashCode").value(view.getId());
        j.name("index").value(0);
        if (!TextUtils.isEmpty(view.get$element_selector())) {
            j.name("element_selector").value(view.get$element_selector());
        }
        if (!TextUtils.isEmpty(view.get$element_content())) {
            j.name("element_content").value(view.get$element_content());
        }
        j.name("element_level").value(++mSnapInfo.elementLevel);
        j.name("h5_title").value(view.get$title());
        float scale = view.getScale();
        if (webViewScale == 0) {
            webViewScale = scale;
        }
        // 原生 WebView getScrollX 能取到值，而 X5WebView 始终是 0
        float left = 0f, top = 0f;
        if (webView.getScrollX() == 0) {
            left = view.getLeft() * webViewScale;
        } else {
            left = (view.getLeft() + view.getScrollX()) * webViewScale;
        }
        if (webView.getScrollY() == 0) {
            top = view.getTop() * webViewScale;
        } else {
            top = (view.getTop() + view.getScrollY()) * webViewScale;
        }
        j.name("left").value((int) left);
        j.name("top").value((int) top);
        j.name("width").value((int) (view.getWidth() * webViewScale));
        j.name("height").value((int) (view.getHeight() * webViewScale));
        j.name("scrollX").value(0);
        j.name("scrollY").value(0);
        j.name("visibility").value(view.isVisibility() ? View.VISIBLE : View.GONE);
        j.name("url").value(view.get$url());
        j.name("clickable").value(true);
        j.name("importantForAccessibility").value(true);
        j.name("is_h5").value(true);

        j.name("classes");
        j.beginArray();
        j.value(view.getTagName());
        Class<?> klass = webView.getClass();
        do {
            j.value(klass.getCanonicalName());
            klass = klass.getSuperclass();
        } while (klass != Object.class && klass != null);
        j.endArray();

        List<String> list = view.getSubelements();
        if (list != null && list.size() > 0) {
            j.name("subviews");
            j.beginArray();
            for (String id : list) {
                j.value(id);
            }
            j.endArray();
        }
        j.endObject();
    } catch (IOException e) {
        SALog.printStackTrace(e);
    }

}