Example usage for org.apache.wicket.request.resource ByteArrayResource ByteArrayResource

Introduction

In this page you can find the example usage for org.apache.wicket.request.resource ByteArrayResource ByteArrayResource.

Prototype

public ByteArrayResource(final String contentType) 

Source Link

Document

Creates a ByteArrayResource which will provide its data dynamically with #getData(org.apache.wicket.request.resource.IResource.Attributes)

Usage

From source file:de.inren.frontend.health.backup.BackupRestorePanel.java

License:Apache License

private Component getMyBackupLink(String id) {
    Calendar cal = Calendar.getInstance();

    final String key = "HealthBackup_" + getUser().getUsername() + "_" + cal.getTime().toString() + ".xml";

    ResourceReference rr = new ResourceReference(key) {

        @Override// ww  w. j av a2  s .  co m
        public IResource getResource() {
            return new ByteArrayResource("text/xml") {

                @Override
                protected byte[] getData(Attributes attributes) {
                    try {
                        String xml = healthXmlBackupRestoreService.dumpDbToXml(getUser().getUsername());
                        return xml.getBytes("UTF-8");
                    } catch (Exception e) {
                        log.error(e.getMessage(), e);
                        throw new RuntimeException(e.getMessage());
                    }
                }
            };
        }
    };
    return new ResourceLink(id, rr);
}

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From source file:de.inren.frontend.health.backup.BackupRestorePanel.java

License:Apache License

private Component getAllBackupLink(String id) {
    Calendar cal = Calendar.getInstance();

    final String key = "HealthBackup_AllUser" + "_" + cal.getTime().toString() + ".xml";

    ResourceReference rr = new ResourceReference(key) {

        @Override/*from  w  ww  .j  av a2  s  .  c om*/
        public IResource getResource() {
            return new ByteArrayResource("text/xml") {

                @Override
                protected byte[] getData(Attributes attributes) {
                    try {
                        String xml = healthXmlBackupRestoreService.dumpDbToXml();
                        return xml.getBytes("UTF-8");
                    } catch (Exception e) {
                        log.error(e.getMessage(), e);
                        throw new RuntimeException(e.getMessage());
                    }
                }
            };
        }
    };
    return new ResourceLink(id, rr);
}

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From source file:org.apache.openmeetings.web.user.rooms.RoomsPanel.java

License:Apache License

public RoomsPanel(String id, List<Room> rooms) {
    super(id);//from www.  j av  a  2 s.c o m
    add(new RoomListPanel("list", rooms, Application.getString(131)) {
        private static final long serialVersionUID = 1L;

        @Override
        public void onContainerClick(AjaxRequestTarget target, Room r) {
            roomId = r.getId();
            updateRoomDetails(target);
        }

        @Override
        public void onRefreshClick(AjaxRequestTarget target, Room r) {
            super.onRefreshClick(target, r);
            roomId = r.getId();
            updateRoomDetails(target);
        }
    });

    // Users in this Room
    add(details.setOutputMarkupId(true).setVisible(rooms.size() > 0));
    details.add(new Label("roomId", roomID));
    details.add(new Label("roomName", roomName));
    details.add(new Label("roomComment", roomComment));
    clients = new ListView<Client>("clients", clientsInRoom) {
        private static final long serialVersionUID = 1L;

        @Override
        protected void populateItem(final ListItem<Client> item) {
            Client client = item.getModelObject();
            final Long userId = client.getUserId();
            item.add(new Image("clientImage", new ByteArrayResource("image/jpeg") {
                private static final long serialVersionUID = 1L;

                @Override
                protected ResourceResponse newResourceResponse(Attributes attributes) {
                    ResourceResponse rr = super.newResourceResponse(attributes);
                    rr.disableCaching();
                    return rr;
                }

                @Override
                protected byte[] getData(Attributes attributes) {
                    String uri = null;
                    if (userId != null) {
                        uri = Application.getBean(UserDao.class).get(userId > 0 ? userId : -userId)
                                .getPictureuri();
                    }
                    File img = OmFileHelper.getUserProfilePicture(userId, uri);
                    try (InputStream is = new FileInputStream(img)) {
                        return IOUtils.toByteArray(is);
                    } catch (Exception e) {
                        //no-op
                    }
                    return null;
                }
            }));
            item.add(new Label("clientLogin", client.getUsername()));
            item.add(new Label("from", client.getConnectedSince()));
        }
    };
    details.add(clientsContainer.add(clients.setOutputMarkupId(true)).setOutputMarkupId(true));
}

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From source file:org.apache.openmeetings.web.util.ProfileImageResourceReference.java

License:Apache License

@Override
public IResource getResource() {
    return new ByteArrayResource("image/jpeg") {
        private static final long serialVersionUID = 1L;
        private Long userId = null;
        private String uri = null;

        @Override/* w w  w  .j  a  va 2s  .c o m*/
        protected ResourceResponse newResourceResponse(Attributes attributes) {
            PageParameters params = attributes.getParameters();
            userId = params.get("id").toOptionalLong();
            uri = getBean(UserDao.class).get(userId).getPictureuri();
            ResourceResponse rr = super.newResourceResponse(attributes);
            rr.disableCaching();
            return rr;
        }

        @Override
        protected byte[] getData(Attributes attributes) {
            if (!isAbsolute(uri)) {
                File img = OmFileHelper.getUserProfilePicture(userId, uri);
                try (InputStream is = new FileInputStream(img)) {
                    return IOUtils.toByteArray(is);
                } catch (Exception e) {
                    log.error("failed to get bytes from image", e);
                }
            }
            return null;
        }
    };
}

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