KaguraBean.java

/*
   Copyright 2014 base2Services

   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.base2.example.war.rest;

import com.base2.kagura.core.authentication.AuthenticationProvider;
import com.base2.kagura.core.authentication.FileAuthentication;
import com.base2.kagura.core.authentication.model.User;
import com.base2.kagura.core.report.configmodel.ReportConfig;
import com.base2.kagura.core.report.configmodel.ReportsConfig;
import com.base2.kagura.core.report.connectors.ReportConnector;
import com.base2.kagura.core.storage.FileReportsProvider;
import com.base2.kagura.core.storage.ReportsProvider;
import com.base2.kagura.rest.helpers.ParameterUtils;
import com.base2.kagura.rest.model.ReportDetails;
import com.base2.kagura.rest.model.ReportDetailsAndResults;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.annotation.PostConstruct;
import javax.enterprise.context.SessionScoped;
import javax.inject.Named;
import java.io.Serializable;
import java.util.*;

/**
 * @author aubels
 *         Date: 14/11/2013
 */
@Named
@SessionScoped
public class KaguraBean implements Serializable {
    private static final Logger LOG = LoggerFactory.getLogger(KaguraBean.class);
    static final int EXPORT_PAGE_LIMIT = 10000;
    ReportsProvider<?> reportsProvider;
    AuthenticationProvider authenticationProvider;
    User user;

    {{
        ParameterUtils.SetupDateConverters();
    }}

    @PostConstruct
    void init()
    {
        final String reportLoc = "/reports";
        reportsProvider = new FileReportsProvider(reportLoc);
        authenticationProvider = new FileAuthentication(reportLoc);
    }

    public <T extends ReportDetails> T noSuchReport(String reportName, T result) {
        result.setReportId(reportName);
        final String error = "No such report";
        result.setError(error);
        return result;
    }

    public <T extends ReportDetails> T getReportDetails(String reportName, boolean full, T result) {
        Map<String, Object> errors = new HashMap<String, Object>();
        ReportConfig reportConfig = getReportConfig(reportName, errors);
        if (reportConfig != null)
        {
            getReportDetails(reportConfig, full, result);
        }
        else
        {
            result = noSuchReport(reportName, result);
        }
        return result;
    }

    public <T extends ReportDetails> T getReportDetails(ReportConfig reportConfig, boolean full, T result) {
        reportConfig.prepareParameters(generateExtraRunOptions());
        result.setReportId(reportConfig.getReportId());
        result.setExtra(reportConfig.getExtraOptions());
        if (full)
        {
            result.setParams(reportConfig.getParamConfig());
            result.setColumns(reportConfig.getColumns());
        }
        return result;
    }

    public ReportConfig getReportConfig(String reportName, Map<String, Object> result) {
        ReportsConfig reportsConfig = getReportsConfig();
        ReportConfig reportConfig = reportsConfig.getReports().get(reportName);
        if (reportConfig == null)
            return null;
        if (reportsConfig.getErrors() != null)
            result.put("errors", reportsConfig.getErrors());
        return reportConfig;
    }

    public ReportsConfig getReportsConfig() {
        final ReportsConfig reportsConfig = reportsProvider.getReportsConfig();
        if (reportsProvider.getErrors() != null)
            for (String e : reportsProvider.getErrors())
                LOG.info("Report error: {}", e);
        return reportsConfig;
    }

    public ReportConnector getConnector(String reportId) {
        final ReportConfig reportConfig = getReportConfig(reportId);
        if (reportConfig != null)
            return reportConfig.getReportConnector();
        return null;
    }

    public ReportConfig getReportConfig(String reportId) {
        return getReportsConfig().getReports().get(reportId);
    }

    public Map<String, Object> generateExtraRunOptions() {
        return new HashMap<String, Object>()
        {{

        }};
    }

    public void authenticateUser(String user, String pass) throws Exception {
        authenticationProvider.authenticateUser(user, pass);
    }

    public User getUserModel(String username) {
        return authenticationProvider.getUser(username);
    }

    public User getUser() {
        return user;
    }

    public void setUser(User user) {
        this.user = user;
    }

    public Set<String> getUserReports() {
        if (user == null) return new HashSet<String>();
        return authenticationProvider.getUserReports(user.getUsername());
    }


    public boolean userHasAccess(String reportId) {
        return getUserReports().contains(reportId);
    }

    public ReportDetailsAndResults notLoggedIn(ReportDetailsAndResults result) {
        return null;
    }
}