Java tutorial
/* * Copyright 2016 TIBCO Software,Inc.All rights reserved. * http://community.jaspersoft.com/project/jaspermobile-android * * Unless you have purchased a commercial license agreement from TIBCO Jaspersoft, * the following license terms apply: * * This program is part of TIBCO Jaspersoft Mobile for Android. * * TIBCO Jaspersoft Mobile is free software:you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation,either version 3of the License,or * (at your option)any later version. * * TIBCO Jaspersoft Mobile is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY;without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with TIBCO Jaspersoft Mobile for Android.If not,see * <http://www.gnu.org/licenses/lgpl>. */ package com.jaspersoft.android.jaspermobile.activities.save.fragment; import android.app.ActionBar; import android.content.pm.PackageManager; import android.os.Build; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.content.ContextCompat; import android.view.MenuItem; import android.view.View; import android.widget.ArrayAdapter; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.Spinner; import android.widget.TextView; import android.widget.Toast; import com.jaspersoft.android.jaspermobile.JasperMobileApplication; import com.jaspersoft.android.jaspermobile.R; import com.jaspersoft.android.jaspermobile.activities.save.SaveReportService; import com.jaspersoft.android.jaspermobile.data.entity.ExportBundle; import com.jaspersoft.android.jaspermobile.dialog.NumberPickerDialogFragment; import com.jaspersoft.android.jaspermobile.domain.Profile; import com.jaspersoft.android.jaspermobile.ui.view.fragment.BaseFragment; import com.jaspersoft.android.jaspermobile.util.SavedItemHelper; import com.jaspersoft.android.sdk.client.oxm.resource.ResourceLookup; import com.jaspersoft.android.sdk.util.FileUtils; import org.androidannotations.annotations.AfterViews; import org.androidannotations.annotations.Bean; import org.androidannotations.annotations.Click; import org.androidannotations.annotations.EFragment; import org.androidannotations.annotations.FragmentArg; import org.androidannotations.annotations.ItemSelect; import org.androidannotations.annotations.OptionsItem; import org.androidannotations.annotations.OptionsMenu; import org.androidannotations.annotations.OptionsMenuItem; import org.androidannotations.annotations.TextChange; import org.androidannotations.annotations.ViewById; import java.io.File; import javax.inject.Inject; import timber.log.Timber; import static android.Manifest.permission.WRITE_EXTERNAL_STORAGE; /** * @author Tom Koptel * @since 1.9 */ @EFragment(R.layout.save_report_layout) @OptionsMenu(R.menu.save_item_menu) public class SaveItemFragment extends BaseFragment implements NumberPickerDialogFragment.NumberDialogClickListener { public static final String TAG = SaveItemFragment.class.getSimpleName(); private final static int FROM_PAGE_REQUEST_CODE = 1243; private final static int TO_PAGE_REQUEST_CODE = 2243; private static final int PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE = 100; @ViewById(R.id.output_format_spinner) Spinner formatSpinner; @ViewById(R.id.report_name_input) EditText reportNameInput; @ViewById LinearLayout rangeControls; @ViewById TextView fromPageControl; @ViewById TextView toPageControl; @FragmentArg ResourceLookup resource; @FragmentArg int pageCount; @Bean protected SavedItemHelper savedItemHelper; @OptionsMenuItem MenuItem saveAction; @Inject protected Profile mProfile; private int mFromPage; private int mToPage; public enum OutputFormat { HTML, PDF, XLS } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getBaseActivityComponent().inject(this); hasOptionsMenu(); ActionBar actionBar = getActivity().getActionBar(); if (actionBar != null) { actionBar.setTitle(R.string.sr_ab_title); } } @OptionsItem final void saveAction() { if (canMakeSmores()) { boolean permissionDenied = (ContextCompat.checkSelfPermission(getActivity(), WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_DENIED); if (permissionDenied) { requestPermissions(new String[] { WRITE_EXTERNAL_STORAGE }, PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE); return; } } performSaveAction(); } @Override public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { if (requestCode == PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE && grantResults[0] == PackageManager.PERMISSION_GRANTED) { performSaveAction(); } else { Toast.makeText(getActivity(), R.string.enable_write_permission, Toast.LENGTH_LONG).show(); } } public boolean canMakeSmores() { return (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP_MR1); } private void performSaveAction() { if (!isReportNameValid()) return; OutputFormat outputFormat = (OutputFormat) formatSpinner.getSelectedItem(); String reportName = reportNameInput.getText() + "." + outputFormat; File reportDir = getAccountReportDir(reportName); if (reportDir == null) { Toast.makeText(getActivity(), R.string.sr_failed_to_create_local_repo, Toast.LENGTH_SHORT).show(); return; } File reportFile = new File(reportDir, reportName); String pageRange = calculatePages(mFromPage, mToPage); ExportBundle bundle = new ExportBundle.Builder().setUri(resource.getUri()) .setLabel(reportNameInput.getText().toString()).setDescription(resource.getDescription()) .setFormat(outputFormat.name()).setFile(reportFile).setPageRange(pageRange).build(); SaveReportService.start(getActivity(), bundle); Toast.makeText(getActivity().getApplicationContext(), getString(R.string.sdr_starting_downloading_msg), Toast.LENGTH_SHORT).show(); getActivity().finish(); } @AfterViews final void init() { // show spinner with available output formats ArrayAdapter<OutputFormat> arrayAdapter = new ArrayAdapter<OutputFormat>(getActivity(), android.R.layout.simple_spinner_item, OutputFormat.values()); arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); formatSpinner.setAdapter(arrayAdapter); reportNameInput.setText(resource.getLabel()); // hide save parts views if report have only 1 page if (pageCount > 1) { rangeControls.setVisibility(View.VISIBLE); mFromPage = 1; mToPage = pageCount; fromPageControl.setText(String.valueOf(mFromPage)); toPageControl.setText(String.valueOf(mToPage)); } } @Click(R.id.fromPageControl) void clickOnFromPage() { NumberPickerDialogFragment.createBuilder(getFragmentManager()).setMinValue(1).setCurrentValue(mFromPage) .setMaxValue(pageCount).setRequestCode(FROM_PAGE_REQUEST_CODE).setTargetFragment(this).show(); } @Click(R.id.toPageControl) void clickOnToPage() { NumberPickerDialogFragment.createBuilder(getFragmentManager()).setMinValue(mFromPage) .setCurrentValue(mToPage).setMaxValue(pageCount).setRequestCode(TO_PAGE_REQUEST_CODE) .setTargetFragment(this).show(); } @ItemSelect(R.id.output_format_spinner) public void formatItemSelected(boolean selected, OutputFormat selectedItem) { reportNameInput.setError(null); } @TextChange(R.id.report_name_input) final void reportNameChanged() { boolean nameValid = isReportNameValid(); if (saveAction != null) { saveAction.setIcon(nameValid ? R.drawable.ic_menu_save : R.drawable.ic_menu_save_disabled); } } //--------------------------------------------------------------------- // Helper methods //--------------------------------------------------------------------- private boolean isReportNameValid() { String reportName = reportNameInput.getText().toString(); OutputFormat outputFormat = (OutputFormat) formatSpinner.getSelectedItem(); if (reportName.trim().isEmpty()) { reportNameInput.setError(getString(R.string.sr_error_field_is_empty)); return false; } // reserved characters: * \ / " ' : ? | < > + [ ] if (FileUtils.nameContainsReservedChars(reportName)) { reportNameInput.setError(getString(R.string.sr_error_characters_not_allowed)); return false; } if (savedItemHelper.itemExist(reportName, outputFormat.name())) { reportNameInput.setError(getString(R.string.sr_error_report_exists)); return false; } reportNameInput.setError(null); return true; } @Nullable private File getAccountReportDir(String reportName) { File appFilesDir = getActivity().getExternalFilesDir(null); File savedReportsDir = new File(appFilesDir, JasperMobileApplication.SAVED_REPORTS_DIR_NAME); File accountReportDir = new File(savedReportsDir, mProfile.getKey()); File reportDir = new File(accountReportDir, reportName); if (!reportDir.exists() && !reportDir.mkdirs()) { Timber.e("Unable to create %s", savedReportsDir); return null; } return reportDir; } private String calculatePages(int fromPage, int toPage) { if (toPage == 0) return null; boolean pagesNumbersIsValid = fromPage > 0 && toPage > 0 && toPage >= fromPage; if (pagesNumbersIsValid) { boolean isRange = fromPage < toPage; if (isRange) { return fromPage + "-" + toPage; } else { return String.valueOf(fromPage); } } return "1"; } //--------------------------------------------------------------------- // Page Select Listeners //--------------------------------------------------------------------- @Override public void onNumberPicked(int page, int requestCode) { if (requestCode == FROM_PAGE_REQUEST_CODE) { boolean isPagePositive = (page > 1); boolean isRangeCorrect = (page <= mToPage); if (isPagePositive && isRangeCorrect) { boolean enableComponent = (page != pageCount); toPageControl.setEnabled(enableComponent); mFromPage = page; fromPageControl.setText(String.valueOf(mFromPage)); } } else { boolean isRangeCorrect = (page >= mFromPage); if (isRangeCorrect) { mToPage = page; toPageControl.setText(String.valueOf(mToPage)); } } } }