ChannelMetadata channelMetadata = new ChannelMetadata(); channelMetadata.setCreateGroupMessage(ChannelMetadata.ADMIN_NAME + " created " + ChannelMetadata.GROUP_NAME); channelMetadata.setAddMemberMessage(ChannelMetadata.ADMIN_NAME + " added " + ChannelMetadata.USER_NAME); channelMetadata.setRemoveMemberMessage(ChannelMetadata.ADMIN_NAME + " removed " + ChannelMetadata.USER_NAME); channelMetadata.setGroupNameChangeMessage(ChannelMetadata.USER_NAME + " changed group name " + ChannelMetadata.GROUP_NAME); channelMetadata.setJoinMemberMessage(ChannelMetadata.USER_NAME + " joined"); channelMetadata.setGroupLeftMessage(ChannelMetadata.USER_NAME + " left group " + ChannelMetadata.GROUP_NAME); channelMetadata.setGroupIconChangeMessage(ChannelMetadata.USER_NAME + " changed icon"); channelMetadata.setDeletedGroupMessage(ChannelMetadata.ADMIN_NAME + " deleted group " + ChannelMetadata.GROUP_NAME);